8results about How to "Increase full rate" patented technology

An electric motor includes a housing, a stator assembly, a rotor assembly, a fan blade, and a tail cover. The stator assembly includes an annular stator core and coil groups wound in the coil slots of the stator core. The stator core is composed of multiple independent "I"-shaped stator units assembled into a closed annular shape. The outer and inner transverse sides of each stator unit are arc-shaped, with the arc length of the outer transverse side being longer than that of the inner transverse side. A groove and a boss are respectively provided on both sides of the outer transverse side. In two adjacent stator units, the boss of one stator unit can fit into the groove of another stator unit. The coil groups are divided into multiple groups, the number of which corresponds to the number of stator units. Each group of coils is wound in the coil slots on both sides of the stator unit, forming a stator unit winding. All stator unit windings are sequentially assembled to form a closed-loop stator assembly, and then welded and fixed at the joint of two adjacent stator units. The coils of the coil groups are connected. This invention has a more rational structure and higher working efficiency.

The utility model relates to a split type stator structure, comprising a stator iron core which comprises two symmetrical stator iron core base bodies; a coil wound on the stator core; and each insulating frame is arranged between the corresponding coil and the corresponding stator iron core base body and covers the whole inner surface of the stator iron core base body. The stator iron core of the split type stator structure is arranged to be two symmetrical stator iron core base bodies so as to form a folding structure, the winding slot fullness rate can be improved, the output power and the torque of the motor are further improved, and independent winding can be carried out on the single stator iron core base body after the stator iron core base body is opened so as to improve the winding efficiency. And each insulating frame covers the whole inner surface of the stator iron core base body, so that electric leakage and coil abrasion can be effectively prevented.

The utility model discloses a motor stator, including stator core and flat wire, be equipped with a plurality of stator slot in the stator core, the flat wire is in the stator slot inner layer and is arranged, the cross section of flat wire is trapezoidal, the same layer includes two combined flat wire in the stator slot, the shape and size of flat wire in the stator slot are same. In the utility model, by setting the cross section of flat wire as trapezoidal, make the arrangement mode of flat wire in the stator slot more flexible and various, can adapt to different shape stator slot, and promote the slot full rate, reduce the skin effect influence.

The utility model relates to the technical field of copper foil welding, in particular to a motor copper foil outgoing line structure. The motor copper foil leading-out wire structure provided by the utility model is formed by welding a copper foil winding leading-out wire, a gap of the leading-out wire and a copper foil lap joint area are uniformly filled with welding flux, the sectional area of the welding position is larger than 150% of the sectional area of the copper foil, and the welding length of the leading-out wire in the axial direction is 70%-100% of the width of the copper foil. The length of a copper foil lap joint area is 30%-70% of the total width of the leading-out wire in the radial direction, the number of winding turns of the copper foil completely winding the leading-out wire is 1-3, the contact area of the copper foil and the leading-out wire is large, a winding assembly is compact in structure, the lap joint range is large, the welding spot strength after welding forming is high, no welding seam exists on the outer side of the copper foil, the structural appearance flatness is high, and the problems of burn-through, deformation and the like do not exist. And copper foil winding is facilitated, and the slot fullness rate of the motor is effectively improved.

This invention discloses a process and design method for independently forming the end windings of a motor slot winding. This application further improves upon prior applications and existing motors, disclosing a series of configuration schemes based on the independent forming of the slot windings and end windings. Key features include: all three-stage end windings are formed by bending thin copper strips, allowing for interleaving to achieve cross-slot wiring of different phases, further optimizing motor performance; they also possess the advantage of being effective windings with equivalent function to the slot windings in participating in excitation, and the end windings have better heat dissipation and thermal conductivity, and there is no crossover issue between windings of different phases, greatly improving the winding withstand voltage safety and simplifying the winding forming process.

This utility model discloses a rotor coil winding frame for a brushless generator, including a rotor shaft, a modular assembly frame, rotor windings, and end caps. The rotor shaft has axially spaced mounting slots along its axial direction. One end of the modular assembly frame has an arc-shaped outer protective cover extending from its sidewall, with an axial locking pin at the end of the outer protective cover. The other end of the modular assembly frame has a guide sliding part that inserts into the axial mounting slots. The rotor windings are fitted onto the modular assembly frame. The rotor shaft passes through the center of the end cap, which has multiple locking holes. The axial locking pins and locking holes cooperate to fix the windings. This utility model provides a rotor coil winding frame for a brushless generator, which facilitates winding, provides high rigidity radial constraint, and supports partial replacement and repair.

This utility model discloses a modular stator structure, characterized by comprising several stator core blocks arranged in an I-shape, each composed of a yoke and stator teeth, forming an integral stator core. Stator slots are formed between adjacent stator core blocks, and the stator teeth are T-shaped, with slot openings communicating with the slots between adjacent teeth. The structure also includes a filler for changing the number of stator slots without altering the stator core diameter. This utility model utilizes several stator core blocks assembled into an integral stator core, with each block composed of a yoke and stator teeth. The entire stator core is modularly assembled, which effectively improves utilization, saves silicon steel material, and reduces costs when pressing silicon steel sheets using a press.

This utility model belongs to the field of motor technology, specifically relating to a segmented stator. This utility model utilizes grain-oriented silicon steel to create a segmented stator, comprising multiple U-shaped iron cores evenly arranged circumferentially. Each U-shaped iron core includes multiple U-shaped iron sheets stacked radially. The edges of the teeth of the U-shaped iron cores are flush, and gaps are left between the teeth of adjacent U-shaped iron cores, which are fixedly connected by insulating clips. The yokes of all U-shaped iron cores abut against the stator housing. Each U-shaped iron core is equipped with a winding coil, and the gaps between adjacent U-shaped iron cores, insulating clips, and the stator housing are filled with potting compound. This utility model maximizes the advantages of grain-oriented silicon steel while optimizing the motor structure and manufacturability, comprehensively improving the overall performance of the motor, further highlighting the potential application value of grain-oriented silicon steel as a substitute for non-grained silicon steel, and promoting the development of motor technology towards high efficiency and high power density.