3922results about "Windings insulation shape/form/construction" patented technology

The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed to correspond to the rotor, a housing which accommodates the stator, and a cap disposed on the housing, wherein the stator includes a stator core, an insulator coupled to the stator core, and a coil disposed on the insulator and includes a busbar electrically connected to the coil and a busbar holder which supports the busbar, the cap includes a hole through which the busbar passes and a protruding portion protruding from a lower surface of the cap, and the protruding portion is in contact with a stepped surface of the busbar.

Provided is an electric water pump with an over-molding stator for improving a flow structure and a dimensional accuracy in the water pump. The pump largely includes: a stator including a rotor accommodation part accommodating a rotor and a plurality of coils arranged around a rotating shaft of the rotor in a circumferential direction; and a molding part surrounding the stator to insulate the plurality of coils, wherein the molding part is injected onto the stator to surround the entire coil while having a plurality of flow paths formed between the coils and passing through in a direction of the rotating shaft.

The utility model provides a stator assembly and a disc type motor, the stator assembly comprises a stator assembly, a winding assembly and an insulation assembly, and the stator assembly comprises a plurality of stator teeth in an annular array; the winding assembly comprises a coil which is independently wound on the periphery of each stator tooth; the insulation assembly comprises an axial insulation part and a radial insulation part, the axial insulation part is arranged on the stator teeth in a sleeving mode and attached to the axial end face of the coil, and the radial insulation part is attached to the radial surface of the stator teeth so as to insulate the inner side surface of the coil from making contact with the stator teeth. According to the coil framework, the axial insulating part and the radial insulating part are combined and can be separated, interference of the axial insulating part on assembling of the preformed coil is effectively avoided, and compared with a coil framework in the prior art, the design scheme improves flexibility and efficiency of coil installation while maintaining insulating performance.

The invention relates to the technical field, provides a notch liquid cooling structure of a flat wire motor stator, and realizes high-efficiency and low-consumption motor stator cooling through an accurately-positioned full-coverage liquid cooling structure. In order to achieve the purpose, the motor comprises a stator iron core, closed iron core wire grooves are evenly distributed in the inner edge of the stator iron core, wires forming windings are inserted in the iron core wire grooves, the wires are tightly attached to the outer diameter ends of the iron core wire grooves, oil way channels are formed between the wires and the inner diameter ends of the iron core wire grooves, the two ends of the stator iron core are provided with end rings, and the two ends of the stator iron core are provided with end rings. The end ring wraps the wire, and the end ring and the oil path channel form a closed oil path space. Due to the adoption of the technical scheme, the oil path channel formed between the wire and the inner diameter end of the iron core wire slot is matched with the closed oil path space formed by the end ring and the oil path channel, and the position of the oil path channel is used for accurately cooling the wire with the highest heating.

A stator of a rotating electric machine includes: a stator core including a yoke; an insulator having a plurality of insulator inner walls; a cover; a first insulating member; and a second insulating member. The cover has an insertion plate extending in an axial direction of the yoke. The insertion plate has a support surface that is located in a space between the insulator inner walls adjacent to each other in a circumferential direction of the yoke and located inward of the second insulating member to support the second insulating member in a radial direction of the yoke. The support surface is located outward of a slot opening in the radial direction of the yoke when viewed in the axial direction of the yoke.

In a rotating electric machine that includes an armature with an armature coil, the armature coil is formed by winding an electrical conductor wire. The electrical conductor wire includes a plurality of element wires in a bundled state and an insulating coat covering the bundled element wires. Each of the element wires includes an electrical conductor through which electric current flows, and a fusing layer that covers a surface of the electrical conductor. In the bundled state of the element wires, the fusing layers of the element wires are in contact with and fused to one another. Between adjacent parts of the electrical conductor wire wound to form the armature coil, there are formed gaps due to differences in straightness between different parts of the electrical conductor wire. The gaps are filled with a filler.

A rotary machine coil includes: a coil conductor; and an insulation layer including a mica tape which is wrapped around an outer periphery of the coil conductor and in which a mica layer and a film layer are laminated in this order from the coil conductor side, and a cured material of a thermosetting resin composition with which the mica layer is impregnated. The permittivity in an insulation layer (first mica layer) on the inner-layer side is higher than the permittivity in an insulation layer (second mica layer) on the outer-layer side, thus reducing the electric field intensity applied in the insulation layer.

The invention discloses a spiral non-magnetic tooth armature stator and an assembly method thereof, the stator can be applied to a superconducting excitation motor, the stator comprises a stator core and an armature winding, the stator core is formed by laminating silicon steel sheets, the armature winding is installed in the stator core, and the armature winding is installed in the stator core. The stator further comprises an outer insulation supporting frame, an inner insulation supporting frame and a soft insulation cylinder, a plurality of first armature winding installation grooves are spirally formed in the inner circumferential face of the outer insulation supporting frame in the circumferential direction, and a plurality of second armature winding installation grooves are spirally formed in the outer circumferential face of the inner insulation supporting frame in the circumferential direction. Armature windings are installed in the first armature winding installation groove and the second armature winding installation groove, and the soft insulation cylinder is arranged between the outer insulation supporting frame and the inner insulation supporting frame in an interference fit mode. The space occupancy rate of the armature winding is improved, so that the power density of the motor is improved; moreover, effective support is provided for the armature winding, and the supporting stability of the armature winding is improved, thereby enabling the operation of the motor to be more reliable.

Provided is a stator assembly apparatus configured to assemble a stator, the apparatus including: a plurality of guide members that are provided in a manner enabling insertion into and withdrawal from inside the electrically-insulating members in a central axial direction of the stator core, and are arranged in a radial direction of the slots in a state of having been inserted inside the electrically-insulating members; a presser configured to press the coil radially outward with respect to the stator core; and a controller configured to control movement of the plurality of guide members. Each time the coil moved by the presser come into contact with or approaches the guide member positioned most radially inside from among the plurality of guide members inside the electrically-insulating members, the controller causes the guide member positioned most radially inside to move so as to sequentially withdraw from within the electrically-insulating members.

An electrical machine may include a rotor rotatable about an axis of rotation, by way of which an axial direction of the electrical machine may be defined, a stator having electrically conductive stator windings, and at least one cooling channel through which a coolant may be flowable for cooling the stator windings. The stator may have stator teeth extending along the axial direction, arranged spaced apart from another along a circumferential direction of the rotor, and bearing the stator windings. The at least one cooling channel and at least one stator winding may be arranged in at least one intermediate space formed between two stator teeth adjacent in the circumferential direction. A plastic for transferring heat from the at least one stator winding to the at least one cooling channel may be arranged in the at least one intermediate space.

The invention discloses an insulated wire and a preparation method thereof, a coil and electronic / electrical equipment, the insulated wire comprises a conductor and an insulating layer arranged at the periphery of the conductor, the material of the insulating layer is obtained by mixing and granulating two resins, namely resin A and resin B, and the material obtained after mixing comprises units shown in the following formulas 1-3: # imgabs 0 # formula 1, # imgabs 1 # formula 2 and # imgabs 2 # formula 3; the molar ratio of the unit as shown in the formula 1 is 3-17%, the molar ratio of the unit as shown in the formula 2 is 37-77%, and the molar ratio of the unit as shown in the formula 3 is 20-47%. According to the invention, the adhesiveness of the pure PEEK resin and a copper conductor can be improved, and the flexibility of the insulating material is improved; and the PEK-C and the PEEK both belong to polyarylether ketones and have the same ether bond and ketone group, so that the compatibility of the PEK-C and the PEEK is good, and the overall strength and stability of the blended material can be improved.

The invention relates to the technical field of rotor unmanned aerial vehicle motors, in particular to an integrated motor for a rotor unmanned aerial vehicle in a dual-control mode. Comprising a motor stator which comprises a stator core, a stator winding and a stator seat, and the stator seat is fixedly connected to a driver shell; the motor rotor comprises a rotor iron core, rotor magnetic steel, a rotor shell and a penetrating type rotor through shaft, and the rotor through shaft is rotationally connected with the stator seat through a rotor bearing. Through topological innovation of the rotor through shaft integrated self-cooling fan, the rotating speed of the fan is automatically matched with the running state of the motor, and the active suppression of the junction temperature of a power device is realized by using the forced eddy current effect in the driver shell.

A rotating electrical machine comprising a part made of electrically insulating material (1) housed within each slot (4) of a stator core (2), characterised in that the part (1) is configured to establish a separation between each of the conductors (5.1, 5.2) of the stator winding that pass through said slot (4), and to establish a channel (6) for the passage of a coolant fluid corresponding to each conductor (5.1, 5.2) allowing direct contact of the coolant fluid with each conductor (5) of the stator winding.

A motor-driven compressor includes a compression unit, a motor including a stator, and a housing. The stator includes a stator core, coils of multiple phases, an insulator, a phase-to-phase insulation sheet, and a cover member. The cover member includes an annular cover end wall and a tubular cover inner wall that extends toward the insulator inner wall from a radially inner portion of the cover end wall. The cover end wall includes a conical tapered wall that is inclined such that the distance between the cover end wall and the insulator inner wall decreases as the cover end wall extends toward the cover inner wall. The tapered wall is continuous with the cover inner wall.

The invention relates to an electric motor device (10a; 10b; 10c) with a stator (12a; 12b; 12c) which has a first winding (14a; 14b; 14c) and at least one second winding (16a; 16b; 16c) for operation by at least two different supply voltages and at least one stator tooth (18a; 18b; 18c), wherein a first winding area (20a; 20b; 20c) for the first winding (14a; 14b; 14c) and at least one second winding area (22a; 22b; 22c) for the second winding (16a; 16b; 16c) are arranged on the stator tooth (18a; 18b; 18c). It is proposed that the stator (12a; 12b; 12c) has a wall (40a; 40b; 40c) which separates the first winding area (20a; 20b; 20c) and the second winding area (22a; 22b; 22c).

The invention discloses a ventilation cooling optimization method for an all-hydrogen-cooled gas turbine generator, and relates to the technical field of all-hydrogen-cooled generator cooling, and the method comprises the steps: analyzing cooling demands, calculating loss in combination with a high-frequency start-stop peak regulation working condition, and setting a stator RTD temperature, an iron core temperature and a temperature rise target; an end ventilation structure is designed, the diameter of the fan is optimized, and bar gaps, wind shield holes and inner supporting ring ventilation grooves are formed; optimizing variable air ducts of the iron core, and adjusting the width of the air ducts according to thermal load partitions; cFD coupling simulation verification is carried out, and a loss data simulation flow field and a temperature field are imported; carrying out physical test iterative optimization, manufacturing a prototype model, testing, and adjusting parameters until errors are qualified; operation monitoring and dynamic adjustment are carried out, and a sensor is installed to collect data in real time and adapt to working condition requirements. Cooling uniformity and efficiency are improved, peak regulation start and stop working conditions are adapted, hydrogen parameter change influences are balanced, vibration and cooling are cooperatively controlled, operation and maintenance convenience is improved through modular design, and long-term stable operation of the generator is guaranteed.

The invention relates to an enameled round wire, to a method for producing an enameled round wire and to the use of an enameled round wire. So far, lubricating wire paints, in particular wire paints having polymers containing siloxane groups, cannot be impregnated because the uppermost "last" lubricating layer in the multilayer wire paint structure is non-polar due to the siloxane groups. The invention suggests that the multilayer structure can be used in order to break at least the uppermost layer of lubricating paint by means of an intermediate step of energizing and / or Joule heating, which is often present, to raise the temperature to 200 DEG C or higher for a short period of time, thus, the subsequent impregnation with the liquid impregnating resin can be bonded to the thermally labile layer below the uppermost lubricating layer.

The invention requests to protect a motor stator with oil passing through grooves for cooling, the motor stator comprises a shell, an iron core and a winding, the iron core is cylindrical, the shell is arranged outside the iron core, the annular inner wall of the iron core is provided with a plurality of stator grooves, each stator groove is arranged along the axial direction of the iron core in a penetrating manner, and the winding is arranged in the stator groove. A plurality of oil holes are formed in the groove bottom of each stator groove in the radial direction, circumferential oil way grooves are formed in the positions, at the oil holes in different axial positions, of the annular outer wall of the iron core in the circumferential direction, and a plurality of axial oil way grooves are formed between every two adjacent circumferential oil way grooves. An oil inlet is formed in the position, between the two circumferential oil way grooves which are farthest away from each other, of the shell. The oil holes are communicated through the circumferential oil way grooves and the axial oil way grooves, and therefore after cooling oil enters from the oil inlet, large-area cooling can be conducted on the surface of the iron core firstly; the cooling oil enters the stator slots through the oil holes, so that the cooling oil is directly sprayed to the windings in the stator slots; and finally, axially spraying and cooling the end winding.

To improve the reliability of a rotating electrical machine.SOLUTION: A second cover member 70 includes insertion plates 77, 78 extending in the axial direction of a yoke 24. An insulator inner wall 54 is located at a position away from each other in the circumferential direction of the yoke 24 and includes a pair of space forming walls 63, 81 demarcating insertion spaces 62, 80 into which the insertion plates 77, 78 are inserted. The insertion plates 77, 78 are capable of contacting the pair of space forming walls 63, 81 while being inserted into the insertion spaces 62, 80. Friction in the axial direction of the yoke 24 between an engaging piece 75 and an insertion recess 61 is suppressed by an amount equal to the friction generated in the axial direction of the yoke 24 between the insertion plates 77, 78 and one of the pair of space forming walls 63, 81.SELECTED DRAWING: Figure 16

An electric work machine includes a stator including a stator core, an insulator fixed to the stator core, and a coil mounted on the insulator, a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet, a stator base including a first heat dissipation fin and supporting the stator core, and an output unit driven by the rotor.

The invention provides an outgoing line protection assembly and a motor. The outgoing line protection assembly is used for protecting a lead-out wire of a motor stator, and comprises an outgoing line sheath which comprises an electric insulation part made of an insulation material, and the electric insulation part is arranged in the motor and located at a wire welding position on the stator; a groove of a blind hole structure is formed in the side wall, facing the wire welding position, of the electricity insulation part, and the groove covers the wire welding position. According to the invention, the electric insulation part is arranged on the traditional outgoing line protection device, the welding point on the stator is covered, the voltage resistance and insulation of the motor end cover and the welding point are ensured, an electric insulation ring structure is not needed, the operation is reduced, the assembly efficiency is improved, and the cost is reduced.

A coil has a first coil portion that is at least partially located within a slot, and a second coil portion having a first end press-fitted into the first coil portion. Insulating resin has a continuous filling portion that continuously fills a space between an inner wall of the slots and the first coil portion in a central part of the slots with respect to the axial direction. A first positioning component is located on a first side in an axial direction relative to the continuous filling portion, and positions the first coil portion while being at least partially sandwiched between the inner walls of the slot and the first coil portion in a circumferential direction of the stator core. The first positioning component covers a gap between the first coil portion and the second coil portion that are press-fitted into each other, in the circumferential direction.

The invention relates to a dipolar compact high-speed motor heat dissipation structure, belongs to the technical field of motors, and solves the technical problems of poor heat dissipation effect and the like of wind path circulation in an existing motor. The heat dissipation structure comprises a motor base, a motor rotor and a motor stator, and the motor rotor is rotatably mounted in the motor base; the motor stator is fixedly arranged in the machine base, and the motor rotor is coaxially located in an axial center channel of the motor stator. A plurality of axial stator notches are formed in the inner side wall of the motor stator, an air gap exists between the motor stator and the motor rotor, and the air gap and the stator notches form a first air channel; a yoke part of the motor stator is provided with a plurality of axial ventilation holes; the first air channel, the axial ventilation hole and cavities located at the two opposite ends of the motor stator in the machine base form an internal circulation air path. Through the arrangement, rotor shaft hole ventilation is canceled, air gaps and stator notches are matched for ventilation, the axial ventilation holes are formed in the stator yoke part, an internal circulation air path is formed, and the internal circulation efficiency can be improved.

The present invention includes: a stator core (21) having a slot (21a); a bobbin (22) fitted in the slot (21a) and having a through hole (22c) penetrating in an axial direction of the stator core (21); a coil (23) inserted in the through hole (22c); a plurality of protrusions (22e) that protrude from at least one of an inner periphery of the through hole (22c) and an outer periphery of the coil (23), and guide the position of the coil (23) in the through hole (22c); and a resin filled on the periphery of the coil (23) in the through hole (22c).

The utility model relates to a stator assembly, a motor and a compressor, the stator assembly comprises a stator iron core, the stator iron core comprises a stator yoke part, a stator tooth base part and a stator tooth end part which are connected in sequence, and two sides of the stator tooth base part, the stator yoke part and the stator tooth end part are respectively enclosed to form a winding groove; the side wall of the winding groove is covered with insulation paper in an attached mode. The upper end and the lower end of the insulation paper are respectively provided with an outer folding edge, each outer folding edge is provided with a first through hole, and the stator yoke part is provided with a first concave hole corresponding to the first through hole. The upper end and the lower end of the insulation paper are respectively provided with a side folding edge, the side folding edges are provided with second through holes, and the base part of the stator tooth is provided with second concave holes corresponding to the second through holes; the upper end face and the lower end face of the stator core are respectively connected with an insulating framework, and the end face of each insulating framework is provided with a first protrusion inserted into the corresponding first concave hole and a second protrusion inserted into the corresponding second concave hole. According to the utility model, copper wire consumption and resistance can be effectively reduced, so that copper material cost is effectively reduced, and motor efficiency is improved.

The utility model discloses an axial magnetic flux disc type motor stator iron core with an insulation structure and a disc type motor, comprising a stator iron core and insulation frameworks, each inner groove insulation framework comprises a left side wall, a right side wall, an inner baffle plate, an upper baffle plate and a bottom baffle plate, one end of the left side wall and one end of the right side wall are respectively connected with two sides of the inner baffle plate to form a V-shaped layout, the inner slot insulation framework is sleeved on the tooth part by taking the tooth part of the stator core as a reference; each outer groove insulation framework comprises two outer baffle plates and a groove insulation part which radially protrudes inwards from the position between the two outer baffle plates, the outer groove insulation framework takes a wire embedding groove of the stator iron core as a reference, the groove insulation part is embedded into the wire embedding groove to insulate the outer end of the wire embedding groove, and the outer baffle plates are attached to the outer side wall of the tooth part; the structure can be applied to an open slot, a closed slot or a semi-closed slot, the inner slot insulation framework and the outer slot insulation framework form nesting and have an interlocking function, it is guaranteed that the whole framework cannot move, the technology is simple, installation is convenient, the creepage distance is easy to guarantee, and reliability is greatly improved.

This stator for a rotary electric machine comprises a stator core, a slot that is provided in the stator core and has a plurality of layers, and a coil wound around the slot. The coil has a plurality of conductors. The plurality of conductors are respectively inserted into the plurality of layers in a radial direction. An insulating coating of the conductors that are inserted into at least two adjacent layers in the plurality of layers and have the same potential is thicker than the insulating coating of the conductors that are inserted into other layers and have a lower potential than the conductors having the same potential.

Stators in downhole ESP motors often are used in the sorts of high temperature operations in which rigid, inorganic insulation may prove useful. However, such rigid insulation materials may have inherent manufacturability issues which can limit usage, for example in elongated motors of the sort often used with downhole electrical submersible pumps. Disclosed embodiments provide solutions for effectively insulating conductor portions in the slots of a stator lamination in an ESP motor, and for effectively manufacturing, managing inventory for, and assembling improved stators.

A stator includes a plurality of insulators and a plurality of coils. Each of the insulators has a plurality of retention grooves and a plurality of stopper protrusions. Each of the stopper protrusions has a contact surface which makes physical contact with an end of a third or subsequent odd-numbered layers of turns of a corresponding one of the coils. Each of the contact surfaces has a first end and a second end which opposed to each other in a direction perpendicular to a first direction and a reference axis. The first end is located closer to a corresponding one of the teeth than the second end is. The contact surface is inclined to have the second end located farther away from a corresponding one of the coils than the first end is in the first direction.

The invention discloses a stator assembly, a motor, an electric drive assembly and a vehicle. The stator assembly comprises a stator core; the at least one phase of stator winding is wound on the stator core, each phase of stator winding is provided with a plurality of branches, and each branch is provided with a lead; the busbar assembly is arranged on one side of the stator iron core in the axial direction of the stator iron core and electrically connected with the lead wires, and the inner side and the outer side, in the radial direction of the stator iron core, of the busbar assembly are electrically connected with the lead wires. The busbar assembly is arranged on the axial side, the radial occupied space of the motor is saved, and when a plurality of branches are arranged, the leads are dispersedly connected to the inner side and the outer side of the busbar assembly, so that the joints of the two sides of the busbar assembly and the leads are stressed, and the reliability of the motor is improved. And the fracture risk caused by insufficient connection strength of the busbar assembly and the lead due to single-side connection is avoided, and the motor performance is further influenced.