2751results about "Windings insulation shape/form/construction" patented technology

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 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 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.

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 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.

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.

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 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.

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.

The invention discloses a flat wire for a motor, a stator, a motor and a vehicle, the flat wire has a width direction and a thickness direction in an extension direction perpendicular to the flat wire, the flat wire comprises a flat wire body, the size of the flat wire body in the thickness direction is delta, the size of the flat wire body in the width direction is omega, and the width of the flat wire body in the width direction is omega. The elastic modulus E of the flat wire body meets the formula # imgabs0 #, mu is 0.5, and the unit is Gpa / mm; eta is 0.1 and is a dimensionless quantity. According to the embodiment of the invention, through the design of the flat wire body and the determination of the optimal relation among the width omega, the thickness delta and the elastic modulus E, the flat wire is enabled to be smaller in stress under a vibration working condition, the mechanical property and the key technology of lightweight design are balanced, meanwhile, the space utilization rate is improved, and the system is more miniaturized.

An electric machine includes a stator core defining slots having a number of radial positions. A winding is disposed in the core and has three phases, each of the phases having at least two parallel paths including hurdle-shaped conductors interconnected to form at least two continuous circuits between a terminal and a neutral. Each of the hurdle-shaped conductors have first and second uprights disposed in a different one of the slots and a bridge connecting between the uprights and extending circumferentially over an end surface of the core, wherein the bridges are stacked one on top of the other such that the winding has upper and lower layers. The bridges have variable thickness such that a number of bridges, at each of the upper and lower layers, extending over one of the slots exceeds the number of radial positions of that slot.

The present invention provides a core assembly, a motor, a compressor, and a vehicle. The core assembly includes: a core body, the core body includes a plurality of segmented cores, and a mounting groove is provided at the edge of at least one end face of each segmented core; a plurality of insulating frames, each segmented core is arranged between two insulating frames, and the two insulating frames are distributed at both ends of a segmented core, and at least one insulating frame is provided with an insulating protrusion for covering both sides of the segmented core on one end face facing the segmented core, and the insulating protrusion cooperates with the mounting groove. By covering both sides of the segmented core with the insulating protrusion, the thickness of the portion of the insulating frame covering the end face of the segmented core and extending along the end face can be effectively reduced while ensuring sufficient creepage distance between the winding of the motor and the core assembly, thereby reducing the length of the core assembly in the axial direction of the core body, thereby facilitating reduction in motor volume and weight, and high insulation reliability.

The present invention discloses a flat wire stator assembly and a motor, including a stator core and a stator winding. All hairpin coils are divided into a first hairpin coil group, a second hairpin coil group, and a third hairpin coil group. The hairpin coils in the first hairpin coil group are located in the first layer, the hairpin coils in the second hairpin coil group are evenly distributed in the Tth, (T + 1)th,..., (L - 1)th layers respectively, and the hairpin coils in the third hairpin coil group are located in the Lth layer; the stator winding includes M parallel sub-windings formed by series connection of hairpin coils distributed in different mounting slots, different magnetic poles, and different layers, and each of the sub-windings is formed by series connection of some or all of the hairpin coils in each of the first hairpin coil group, the second hairpin coil group, and the third hairpin coil group. The present invention has the effects of fewer types of hairpin coils, simple forming structure of the stator assembly, and convenient production and manufacturing.

A motor assembly including a rotor rotatable about a rotating shaft; a stator formed as a continuous body and including multiple teeth areas, multiple body areas disposed outside of the multiple teeth areas and having a first width in a cross section of the stator in a direction perpendicular to a rotational axis of the rotating shaft, with the plurality of teeth areas extending from the plurality of body areas in a direction toward the rotating shaft, and multiple connection areas connecting multiple body areas; and a coil wound around each of the multiple teeth areas, wherein each of the multiple connection areas has a bending point having a second width in the cross section of greater than or equal to 0.05 and less than or equal to 0.25 of the first width, and is in contact with another connection area with reference to the bending point.

The invention discloses a connecting structure of frameless torque motor flat wire windings, which belongs to the technical field of frameless torque motors, and comprises a stator consisting of a stator core and windings, the stator core comprises stator slots and tooth parts, each phase of winding consists of N sets of two groups of flat wire coils, the width of the flat wire coil is gradually increased from the inner diameter side of the stator to the outer diameter side of the stator, the current direction of the coil accords with regular circulation of positive and negative and positive, each set of coil connecting wire is formed by connecting in the same layer, and compared with a coil with the outer side and the inner side connected with a cross-layer wire, the end space can be reduced, and the end height can be reduced. Compared with a round wire winding, the connection structure of the frameless torque motor flat wire winding has the advantages that the slot fullness rate can be increased, the motor efficiency is high, the stability is improved, the space utilization in a stator slot can be greatly improved through a specific wire connection mode, the space waste in the slot is reduced, the windings are more compact, the overall consumables are less, and the connection and assembly are more convenient.

A stator assembly, a motor and a vehicle relate to the technical field of motors. The stator assembly comprises a stator core, a stator winding and a first insulating part; the stator core is provided with a plurality of stator tooth parts which are arranged at intervals along the circumferential direction of the stator core, and the stator tooth parts extend along the axial direction of the stator core; the stator winding is wound on the stator tooth part, the first insulating part comprises a first insulating part and a second insulating part which are connected, and the second insulating part is arranged in a bendable manner relative to the first insulating part; the first insulating part is arranged between the stator windings wound on the adjacent stator tooth parts, and the second insulating part is connected with any adjacent stator tooth part; wherein the width of the first insulating part in the circumferential direction of the stator core is greater than the thickness of the second insulating part. The stator assembly provided by the utility model is beneficial to improving the insulation effect between the stator windings.

An electric motor includes a rotor, a stator, a bracket, and a screw. The stator includes a stator core, a resin component having a fixing hole, and a molded resin molded unitedly with the stator core and the resin component. The molded resin is a thermosetting resin, The resin component is a thermoplastic resin. The resin component includes an opening and a bottom. An inside diameter of the fixing hole decreases from the opening to the bottom.

The present invention relates to the technical field of generators, and in particular to a salient-pole generator allowing for enhancement of cooling of pole coils. In the generator of the present invention, an air guide device is provided between poles of every two adjacent pole coils; the air guide device comprises an outer edge circumferential double-sided plate, a central radial plate, and an inner circumferential semi-extension plate which are sequentially arranged and form a whole; the outer edge circumferential double-sided plate is separately connected to the outer edges of rotor cores on two sides; the inner circumferential semi-extension plate is arranged between the inner edge of the leeward side of a pole coil and a stator core and serves as an insulating supporting plate; an air inlet is formed between the central radial plate and an insulating supporting plate at the inner edge of the windward side of the adjacent pole coil; an air outlet is formed in the leeward section of the outer edge circumferential double-sided plate; an insulating plate used for supporting is provided between every two adjacent wire turns of each pole coil; and inter-turn air channels are formed between the insulating plate and the wire turns on two sides. The present invention provides a salient-pole generator allowing for enhancement of cooling of pole coils that is capable of fully using the rotor dynamic pressure energy and greatly increasing the heat dissipation area of the pole coils.

The present disclosure proposes a stator assembly (10) for an electric motor, comprising: a stator core (100), the stator core (100) being constructed as a hollow cylinder, multiple axially extending teeth (110) being provided on an inner peripheral wall of the stator core (100), and conductor slots (120) being formed between adjacent teeth (110); a winding, comprising a conductor (200) arranged in the conductor slot (120); an insulator (300), enclosing the conductor (200) in the conductor slot (120); an end insulating plate (400), provided with an end plate (410) extending radially along an outer end face (130) of an axial end of the stator core (100), and multiple sheathing slots (420) extending axially from the end plate (410), each sheathing slot (420) being inserted in the corresponding conductor slot (120), so that the conductor (200) extends through the corresponding sheathing slot (420).

A pole cover is provided for receiving and guiding a winding on a rotor of an electric motor, comprising multiple segments which extend in a radial direction to a center axis of the pole cover, wherein the segments receive a partial region of the winding of the electric motor, and wherein each of the segments includes a winding region to receive the winding and a segment connection region for connecting to other segments, wherein the winding region and the segment connection region border on each other and the segment connection region is situated closer to the center axis than the winding region. The segment connection regions extend at least partially in the circumferential direction about the center axis and each segment connection region protrudes, in the circumferential direction about the center axis, beyond the adjoining winding region. Multiple decoupling regions are also provided, each being situated between two segment connection regions in the circumferential direction about the center axis. An electric motor having such a pole cover and a method for producing a pole cover are also provided.

The invention discloses a wire connecting structure of a flat wire stator, and belongs to the technical field of energy-saving motors, the wire connecting structure comprises a stator core and a stator slot, a winding is arranged in the stator slot, the stator core and the winding form a stator, the stator is a concentrated winding type stator, the longitudinal section of the winding is of an octagonal structure, and the winding is arranged in the stator slot. And the left and right sides of the windings can be broken to reduce the number of used molds and reduce the winding difficulty of the windings, and one end of each of two outgoing lines of each group of windings is on the outer diameter side of the stator while the other end is on the inner diameter side of the stator. According to the wire connecting structure of the flat wire stator, the cross section of the winding is of an octagonal structure, folding can be carried out on the two sides, the number of molds can be reduced, the winding difficulty of the winding can be reduced, compared with a traditional winding with a rectangular cross section, the slot fullness rate can be increased by 4%-8%, the end space is small, the number of opened molds is reduced, the winding difficulty of the winding is reduced, the cost is reduced, and the slot fullness rate, the power density and the efficiency are high.

Inductive power transfer across a rotary joint including a motor comprises a first portion with a magnetically permeable power transmit core with a power transmit coil and a second portion comprising a magnetically permeable power receive core with a power receive coil. The core material in the respective cores directs a time-varying electromagnetic field emitted by the power transmit coil toward the power receive coil where the field is contained. As a result, adjacent devices on a side opposite the coil that utilize magnetic fields, such as motor coils, may operate without interference. For example, a brushless direct current motor comprising a stator in the first portion and a rotor in the second portion may operate while power is transferred. Data may be wirelessly transmitted between the first portion and the second portion.

The invention provides a stator of a permanent magnet synchronous motor and the permanent magnet synchronous motor, the stator of the permanent magnet synchronous motor comprises stator tooth parts and stator yoke parts, the stator tooth parts and the stator yoke parts are connected in the radial direction of the stator, the number of the stator tooth parts in the circumferential direction is N, the circumferential width of the parts, relatively close to the stator yoke parts, of the stator tooth parts is small, and the number of the stator tooth parts is N; the circumferential width of the part, relatively close to the inner circle of the stator, of the stator tooth part is large, the stator tooth part comprises a stator tooth body and a stator tooth boot which are connected in the radial direction, the circumferential width of the stator tooth boot is larger than that of the stator tooth body, and the stator tooth boot comprises a first tooth boot and a second tooth boot which are connected in the radial outward direction of the stator; the first tooth boot is located on the innermost side in the radial direction, and the circumferential width of the first tooth boot is larger than that of the second tooth boot, so that a stepped tooth part structure in the radial direction is formed. According to the invention, the cogging effect can be brought, the magnetic resistance distribution at each part of the magnetic circuit of the motor is improved, the magnetic flux trend is improved, and the counter potential harmonic of the motor is reduced.

The utility model relates to the technical field of compressors, in particular to a lead-out wire sealing wiring structure with full liquid high insulativity, and discloses a lead-out wire sealing wiring structure with full liquid high insulativity. The lead-out wire insulation sleeve is of a sleeve-shaped structure with one closed end, and two vertical plates are arranged in the lead-out wire insulation sleeve and divide the interior of the lead-out wire insulation sleeve into three channels; one side of the closed end of the outgoing line insulation sleeve is provided with wiring holes which are respectively communicated with the three channels; the binding post is inserted into the leading-out wire insulation sleeve through the wiring hole and is connected with a motor leading-out wire; a leading-out wire insulation sleeve round bowl is arranged outside the leading-out wire insulation sleeve wiring hole; the binding post wiring part of the binding post is inserted into the leading-out wire insulation sleeve and is connected with a motor leading-out wire; and the binding post ceramic ring of the binding post is inserted into the leading-out wire insulation sleeve circular bowl. According to the technical scheme of the utility model, the problems of complicated operation, high cost, hidden danger of reliability and the like of a wiring sealing structure which must be used for isolating refrigerants through a sealing ring in the prior art are solved.

The utility model provides a motor stator winding cooling structure and a motor. The motor stator winding cooling structure of the utility model includes an insulating bushing arranged in the winding slot of the stator core, and a drainage structure arranged between the insulating bushing and the motor housing; the insulating bushing has an inner cavity that is set through the length direction of the winding slot, and the stator winding is passed through the inner cavity; the drainage structure can introduce the cooling oil in the oil supply circuit on the motor housing into the inner cavity, and the cooling oil flows through the inner cavity to reduce the temperature of the stator winding. The motor stator winding cooling structure of the utility model sets the inner cavity of the insulating bushing as a channel structure that is set through the length direction of the winding slot, and the cooling oil from the drainage structure can flow through to take away the heat emitted from the stator winding in the inner cavity, thereby well reducing the temperature of the stator winding, which is beneficial to improving the cooling effect of the stator winding of the motor.

A stator includes: a stator core having an annular shape, a coil, and a cover member having a cylindrical shape. The stator core includes a plurality of teeth portions that are aligned in a circumferential direction and a plurality of slots that are formed between the teeth portions which are adjacent to each other in the circumferential direction. In the coil, a plurality of conductor wire portions are wound around each of the teeth portions through the slots. The cover member is arranged to be inserted into an inner circumferential portion of the stator core such that an outer circumferential surface faces an opening on an inside in a radial direction of the plurality of slots. A foamable insulation member that covers an outer surface of the plurality of the conductor wire portions of the coil and is bonded to the outer circumferential surface of the cover member through the opening of the slots is loaded in each of the slots.