32results about "Manufacturing dynamo-electric machines" patented technology

Electric motor components are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are metals or conductive non-metals or metal plated non-metals. The micron conductive fibers may be metal fiber or metal plated fiber. Further, the metal plated fiber may be formed by plating metal onto a metal fiber or by plating metal onto a non-metal fiber. Any platable fiber may be used as the core for a non-metal fiber. Superconductor metals may also be used as micron conductive fibers and/or as metal plating onto fibers in the present invention.

The invention relates to explosion-proof vacuum pressure impregnated insulation device and its process which is used in high-tension motor winding loop impregnated insulation paint, it characterized in that: condensator connected with refrigerator is set on the vacuum tube between the impregnating vessel and vacuum set, and collecting vessel is set on bottom of the impregnating vessel, one end of the collecting vessel is connected with the impregnating vessel, the another end is connected with the paint pipelines of storing vessel via transferring valve and returning valve. Using the device and the process, the remained insulation paint and dissolvent in the impregnating vessel can be solved, when the vacuum set vacuumizes the impregnating vessel, the explosive fuel phenylethene deflocculating agent can not be sucked to the vacuum set to gel and jam, it possesses practical effects of explosion-proof, safe reliability, saving raw material.

A motor includes poles P having a remanence Mr of 0.9 T or more, a coercivity HcJ of 0.80 MA/m or more, and a maximum energy product (BH)_max of 150 kJ/m³ or more, which sets a center point Pc of the magnetic poles in a circumferential direction on a rotor outer circumferential surface to a maximum thickness t_max, wherein when a line connecting the Pc and a rotational axis center Rc is Pc-Rc, a straight line connecting an arbitrary point Px in the circumferential direction on the rotor outer circumferential surface and the Rc is Px-Rc, an apex angle of the lines Pc-Rc and Px-Rc is θ, a number of pole pairs is Pn, a circumferential direction magnetic pole end is Pe, and a magnetic pole end biasing distance ΔL_Pe of the circumferential direction magnetic pole ends Pe is α×t_max (α is a coefficient).

The invention is applicable to the field of brushless motors, and discloses a brushless plastic motor. The brushless plastic motor comprises an injection moulding bottom housing, a rotating shaft, an injection moulding head cover, a stator, a magnet and a tube, wherein the bottom housing comprises a bottom plate part and a convex extending part; an axial through hole is formed in the convex extending part; bearings are arranged in ports of the two ends of the axial through hole in an embedding manner; the rotating shaft is arranged on the bearings in a penetrating manner; the head cover is arranged on the rotating shaft in a sleeving manner; the stator is arranged on the convex extending part of the bottom housing in a sleeving manner; the magnet is arranged on the stator in a sleeving manner; the tube is arranged on the magnet in a sleeving manner; and the head cover is butted with the bottom housing. According to the brushless plastic motor, the bottom housing provided with the convex extending part and the head cover provided with an inner cavity are adopted, the rotating shaft penetrates through the convex extending part of the bottom housing and then is butted with the head cover, the stator, the magnet and the tube are contained in the inner cavity of the head cover, and the bottom housing and the head cover adopt injection moulding and serve as protective housings and mounting carriers of components, so that the structure of the brushless motor is simplified greatly, the processing procedure and the processing time of the brushless motor are reduced greatly, and the production efficiency is improved greatly.

A vehicle including a movable element and an electric machine either driving or being driven by the movable element. The electric machine having first and second housing portions and a stator. The second housing portion is engaged with the first housing portion. The stator being coupled to the first housing portion and the second housing portion by way of compressive force applied to the stator by and between the first housing portion and the second housing portion.

An oilless bearing and a vibration motor having the oilless bearing are disclosed. The vibration motor that includes a housing having an internal space, an oilless bearing which is inserted and secured in the housing, and a shaft of which one end is at least partially inserted into the oilless bearing, where the oilless bearing has a contact part which is in contact with the perimeter of the shaft and a non-contact part which is formed adjoining the contact part and which has a diameter greater than the diameter of the shaft, and where the non-contact part is positioned further outward compared to the contact part, can improve the properties of the vibration motor and reduce mechanical noise, while increasing durability.

The invention relates to a squirrel cage rotor. A squirrel cage rotor centrifugal casting die comprises an upper die, a lower die, a plurality of material returning ejector rods which move downward when the lower die descends, and a material returning ejector rod resetting structure; the upper die is provided with a rotor upper end annular cavity; the material returning ejector rods penetrate through the top wall of the rotor upper end annular cavity and are distributed on the circumferential direction of the rotor upper end annular cavity; and the material retuning ejector rods are parallel to the axis of the upper end annular cavity. The sequence of separating the rotor from the die can be controlled, and small force is applied to the rotor to ensure that the rotor is separated from the die, so that the problems that the automatic production of the rotor is restricted due to the uncontrollable sequence of separating the rotor from the die, and production equipment and the tor are damaged because the rotor falls off in the midway in the material returning process of die centrifugal casting, and the problems of stability of the rotor is reduced during rotation due to deformation of a rotor iron core in the conventional separation method can be solved.

The invention relates to a permanent magnet rotor for a brushless electric motor and a method for mounting the permanent magnet rotor. The rotor comprises a carrier structure of molded plastic that includes a disc portion to which there is centrally fixed a shaft and whose periphery is joined to an essentially cylindrical cage portion coaxial with the shaft, in which portion there are disposed a magnetic flux conducting structure forming an essentially cylindrical wall which is coaxial with the shaft, and a plurality of permanent magnets shaped as ring segments, disposed at angular intervals within and adjacent to said flux conducting structure; the cage portion comprises a plurality of struts on the inner side of the magnetic flux conducting structure and such that between the magnetic flux conducting structure and each pair of adjacent struts there is defined a respective seat adapted to snugly receive a respective permanent magnet. The assembly of the rotor is simple and the deviation is small.

The invention relates to a stator coil winding process which comprises the following steps of: bending a chip into a regular polygon chip, wherein pole pieces at the head and the tail of the regular polygon chip are connected and an opening of the regular polygon chip faces outwards; fixing the regular polygon chip on a coil winding machine and winding wires; and reversely bending the wound regular polygon chip into an annular iron core, wherein the chip opening of the annular iron core faces inwards. The chip of which the pole pieces are linearly arranged is selected and formed by punching, the pole pieces are I-shaped, the chip is at least formed by arranging three pole pieces, and a forked coil winding machine is selected as the coil winding machine. The stator coil winding process can not only be used for manufacturing a stator according with the requirement of a high-performance micro motor, but also can reduce the manufacturing cost of the stator and increase the production efficiency. In addition to being used for the coil winding of a micro motor stator, the process can be used for winding coils of a direct current brushless motor stator, a shaded pole motor stator or other small-size motor stators with similar structures.

The invention relates to a circuit board applied to a motor, in particular to the slot-type circuit board applied to the motor and an assembly process of the slot-type circuit board. The slot-type circuit board applied to the motor comprises a motor outer shell, a front end cover, a rear end cover, a rotor assembly, a circuit board socket assembly and a circuit board plug-in assembly. The circuit board socket assembly is fixed with the rear end cover in a plug-in mode. The circuit socket assembly comprises an electronic component, a carbon brush assembly, torsion springs and a circuit board body. The electronic component is welded on the circuit board body. The carbon brush assembly is fixed on the circuit board body in a buckled mode. Cylinders are arranged on the circuit board body. The torsion springs are sleeved on the cylinders. One end of each torsion spring is connected with the rear end cover in a plug-in mode. The other end of each torsion spring is connected with the carbon brush assembly in a plug-in mode, so that electric connection is formed between the circuit board socket assembly and the rear end cover. Insertion holes are formed in the circuit board socket assembly. Plug pins are arranged on the circuit board plug-in assembly. The plug pins are arranged inside the insertion holes in a plug-in mode to form electric connection. According to the slot-type circuit board applied to the motor and the assembly process, occupied space is reduced, wiring and existing problems of the wiring are avoided, material consumption is saved, cost is reduced, and the anti-interference function of an electrical appliance is also improved.

The invention relates to a bearing preload adjusting and locking structure for a small and special electrical machine and an implementation method. The bearing preload adjusting and locking structureincludes a rotor, a stator, a first bearing, a second bearing, a lock nut, a bearing washer, a bearing outer ring gasket and a bearing inner ring gasket, wherein the outer ring cylindrical surfaces ofthe two bearings are in contact with the cylindrical surface of a rotor shaft sleeve inner cavity; the outer ring inner end surfaces of the two bearings are in contact with the two end surfaces of arotor shaft sleeve stop; the bearing washer is assembled between the inner rings of the two bearings; the bearing outer ring gasket is installed between the first bearing and the rotor shaft sleeve stop; the bearing inner ring gasket is installed between the first bearing and the bearing washer; the lock nut is disposed on the outside of the first bearing and is in threaded connection with a stator output shaft; the threaded joint is coated with anti-loose paint; the boss at the inner end of the lock nut is in close contact with the inner ring of the first bearing; and four blind holes are machined at the outer end of the lock nut. The bearing preload adjusting and locking structure solves the problems that the locking torque of the electrical machine is uneasy to control and poor in stability, and the preload changes greatly after a strong impact.

The invention relates to a small electric motor and a method for manufacturing the same. The small electric motor is preferably provided with a claw pole motor. The small electric motor includes a housing, a stator having at least two stator windings, a rotor having a rotational axis, and a flexible conductor foil for the electrical connection of the stator windings. The conductor foil includes winding connection contacts, external connection contacts and conductor paths between the winding connection contacts and the external connection contacts. Taps of the stator windings are electrically contacted with the winding connection contacts of the conductor foil. The conductor foil can be configured as an elongated strip having at least two connection portions which are arranged in spaced-apart relationship with each other and include winding connection contacts.

The invention discloses a coil inserting machine, which comprises a rack, wherein the rack is provided with a console, a work bench and a memory strip transmission component; the work bench is provided with a stator pressing assembly and a guide rail; the rack is also provided with an advancing cylinder; the memory strip transmission component is matched with the guide rail through the advancing cylinder in a sliding manner; and the memory strip transmission component is provided with a paper hanging and coil inserting assembly. According to the coil inserting machine disclosed by the invention, a stator is mounted through the stator pressing assembly, so that the stability of the stator during coil inserting is ensured; the coil can be inserted into a relatively long stator due to the structure of the stator pressing assembly; the memory strip transmission component is matched with the work bench in the sliding manner, so that the paper hanging and coil inserting assembly is convenient to assemble when working; and the assembled paper hanging and coil inserting assembly can automatically move to the working position, so that the artificial labor intensity is lowered; and the processing efficiency is improved.

The invention discloses an auxiliary device for riveting end covers with a shell of a motor, which is provided with a lower seat and an upper seat. The lower seat is provided with a lower die for positioning the lower end of the motor. The upper part of the lower die is provided with an upper die connected with the upper seat. The upper die corresponds to the upper end of the motor. The upper die is provided with a riveting pressure head I corresponding to a riveting position at the upper end of the shell of the motor. The lower die is also provided with a riveting pressure head II corresponding to a riveting positioning at the lower end of the shell of the motor. The insides of the upper die and the lower die are provided with damping devices. The auxiliary device is pressed on the upper seat by a pressing machine to carry out one-step clamping, i.e. can simultaneously rivet upper and lower end covers with the shell of the motor, protects the end covers of the motor by the damping devices, cannot cause damage to the end covers and the shell of the motor, has strong practicability, shows excellent operating performance in practical application and obviously improves production efficiency and product quality.

The invention proposes an open-type suspension variable frequency motor and a method for assembling the same. The motor comprises a machine base. The inner wall of the base is provided with at least two wide ribs. The outer wall of the machine base is provided with an air-out box and a cooling box. The air-out box is provided with a centrifugal blower. The cooling box is provided with an air-in port. The air-out box is provided with an air-out port. The machine base is provided with a stator and a rotor assembled in the stator. The method comprises: 1) welding the wide ribs onto the inner wall of the machine base; 2) heating the machine base and placing the stator in the machine base; 3) making the stator in interference-fit with the wide ribs; and 4) assembling the rotor in the stator and letting the rotor and the end cover cooperatively connected. The motor proposed by the invention has a simple structure. Compared with the currently available temperature reduction through a built-in fan, the temperature reducing effect of the invention is not subject to the influence of the low speed or the high speed of the rotor. With the method of the invention, the stator can be fixed in the machine base, and at the same time, the assembling method is highly efficient, posing no influence on the axial direction ventilation of the machine base. When the assembled motor is used, a significant temperature reducing effect can be achieved so as to ensure its use safety.

The invention discloses an ideal dragging motor of waterproof sealing using oil liquid jacking and capable of deep diving and free of maintenance and applied to an underwater device. A rotor (2) is atleast surrounded by a narrow-type metal sealing isolated shield (4) in a three-dimensional form, and a motor shaft seal (7) capable of downwardly penetrating a rotary shaft (6) is arranged at the bottom of the narrow-type metal sealing isolated shield (4); an oil liquid S fills the narrow-type metal sealing isolated shield (4); the connection of all splicing gaps for the narrow-type metal sealingisolated shield (4) is realized through a non-removable welding technology; the dragging motor is applied to other underwater devices in the vertical direction underwater through positioning of a mounting plate frame (W) connected with the motor; and the oil liquid is a light oil liquid S of a low freezing point less than 0 DEG C. The accumulated duration of one-time operation and idleness of thedragging motor under the water generally can be more than 15 years, and may even reach 50 years or more.

An intelligent manufacturing device for a precision motor is disclosed, including a control box, A tool placement mechanism is arranged on one side outer surface of the control electric box, the otherside of the control electric box is fixedly installed with a finite position mounting ring, The outer surface of one side of the limit mounting ring is provided with a bag tape breaking alarm device,the outer surface of the lower end of the limit mounting ring is fixedly mounted with a mounting bottom box, the outer surface of one side of the mounting bottom box is fixedly mounted with a numerical control floor, and the outer surface of the lower end of the numerical control floor is fixedly mounted with an equipment base. through the tool placement mechanism, it can help people detect equipment failure, timely maintenance of the equipment, through the bag broken alarm device, in the working process of the bag broken, can let people intuitively know that the bag broken, remind people todeal with it in time, through transparent protection observation mechanism, can let people observe the working conditions at close range.

The invention relates to a die-casting forming die for a motor conjunction box. The motor conjunction box includes a box body and a box cover. The die-casting forming die for a motor conjunction box is characterized in that the die-casting forming die for a motor conjunction box includes c; the box body forming dies and the box cover forming dies can form overall die-casting forming dies; the overall die-casting forming die is provided with at least two box body forming dies and at least two box cover forming die; the box body forming dies and the box cover forming dies are arranged on the overall die-casting forming die in a staggered manner; and the bottommost ends for accommodating the die-casting metal liquid on a box body lower die and a box cover lower die have the same level height. The die-casting forming die for a motor conjunction box uses the mode of alternatively arranging the die-casting forming die for a motor conjunction box to guarantee that the die-casting metal liquid is uniformly distributed in the die chamber; and as the bottommost ends for accommodating the die-casting metal liquid on the box body lower die and the box cover lower die have the same level height, the die-casting forming die for a motor conjunction box can guarantee that the internal stress born by the metal liquid in the die chamber during the forming process is small and the production quality is higher.

The invention belongs to the technical field of tool clamps, and particularly relates to a clamping mechanism and a disc type motor stator clamp. The clamp comprises a clamp bottom frame, wherein a positioning tool plate is arranged on the clamp bottom frame, at least two sliding blocks symmetrical along the center line of the positioning tool plate are further arranged on the clamp bottom frame, and a sliding mechanism for driving the sliding blocks to be close to or far away from the positioning tool plate in the horizontal direction is arranged between the clamp bottom frame and the sliding blocks. A pressing mechanism capable of pressing downwards and lifting upwards is arranged on the sliding block. According to the stator clamping fixture, the symmetrical sliding blocks and the pressing arms are arranged, the pressing arms can be pressed downwards by moving the sliding blocks, the stator is symmetrically clamped, the fixture is compact in structure and convenient to disassemble and assemble, meanwhile, the clamping force is large enough, and the clamping effect on the stator is good.

The invention discloses a seven-axis brushless motor stator winding machine which comprises a rack, an XY axis driving structure is arranged on the rack, a Z axis structure is arranged above the XY axis driving structure, a rotating vertical shaft structure is arranged on the right side of the rack, a clamping linkage mechanism is arranged above the rotating vertical shaft structure, a winding rod mechanism is arranged on right side of the Z axis structure, the winding rod mechanism is connected with a wire cutting mechanism, and a stator clamping tool is arranged on the rotating vertical shaft structure. According to the invention, a synchronous belt of the seven-axis brushless motor stator winding machine can bear higher reciprocating motion frequency than before, the action is accurate, the motion repeated positioning accuracy is in 0.003mm, the structure stability is higher than before, the synchronous belt is easy to change, maintain and the like, the cooperation between transmission parts is formed by distensible connector, the transmission twisting force is strong, back gap does not exist, long time use and firm are ensured, the winding machine having winding rod structure can realize wiring under stator without kinking which causes difficulty on picking and placing work piece, and automatic feeding and blanking can be performed.