SU723721A1

SU723721A1 - Electric machine slotless stator

Info

Publication number: SU723721A1
Application number: SU782655956A
Authority: SU
Inventors: Александр Александрович Батоврин; Иван Максимович Водяхо; Николай Сергеевич Горбатов; Владимир Николаевич Острейко; Юрий Львович Черников
Original assignee: Северо-Западный Заочный Политехнический Институт
Priority date: 1978-08-10
Filing date: 1978-08-10
Publication date: 1980-03-25

Description

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Изобретение относитс к электромашиностроению , а именно к конструкции беспазового статора электрической машины.FIELD OF THE INVENTION The invention relates to electrical engineering, in particular, to the construction of a gapless stator of an electric machine.

Известен беспазовый статор электрической машины, содержаший магнитопровод, выполненный из расположенных вдоль продольной оси шихтовапных сердечников, охваченных навитыми из стальной ленты кольцевыми сердечниками 1.Known bespasovy stator of an electric machine, containing the magnetic core, made of located along the longitudinal axis of the charge cores covered by wound steel strip ring cores 1.

В этом статоре между пластинами шихтованных сердечников расположены проводники обмотки, а в центральной части каждого шихтованного сердечника с наружной стороны выполненьгпр моугольные выступы. Навитые из стальной ленты кольцевые сердечники охватывают шихтованные сердечники со стороны их крайних частей, примыка своими торцовыми част ми, обращенными во внутрь, к выступам шихтованных сердечников. Така конструкци беспазового статора исключает штампованный сердечник и упрощает технологию изготовлени статора .In this stator between the laminated cores plates there are winding conductors, and in the central part of each laminated core from the outer side there are rectangular protrusions. The ringed cores, wound from a steel tape, cover the laminated cores from the side of their extreme parts, adjoining with their end parts facing inward, to the protrusions of the laminated cores. Such a design of a non-stator stator eliminates the stamped core and simplifies the stator manufacturing technology.

Однако недостатком такой конструкции вл етс увеличенна масса активной стали статора из-за неравномерного намагничивани различных участков шихтованных сердечников и наличи участков, практически не нагруженных магнитным потоком. Такими участками вл ютс , например, центральные участки выступов. Это ухудшает использование активных материалов статора.However, the disadvantage of this design is the increased mass of the active stator steel due to uneven magnetization of various sections of the laminated cores and the presence of sections that are practically not loaded with magnetic flux. Such areas are, for example, the central areas of the projections. This impairs the use of active stator materials.

Цель изобретени - уменьшение массы путем улучшени использовани активных материалов.The purpose of the invention is to reduce weight by improving the use of active materials.

Указанна цель достигаетс тем, что в центральной части каждого шихтованного сердечника с наружной стороны выполнен пр моугольный паз, в KOTODOM расположены навитые из стальной ленты кольцевые сердечники , а между ними размещен дополнительный сердечник из стальных шайб, причем крайние части шихтованных сердечников с наружной стороны выполнены скошенными в направлении торцов.This goal is achieved by the fact that in the central part of each laminated core there is a rectangular groove on the outer side, in KOTODOM there are ringed cores wound from steel tape, and between them there is an additional core of steel washers, with the outer parts of laminated cores on the outer side made oblique in the direction of the ends.

На чертеже представлена электрическа машина с предлагаемым беспазовым статором .The drawing shows an electric machine with the proposed baseless stator.

Claims

The baseless stator of an electric machine contains a magnetic core made of laminated cores 1 located along the longitudinal axis

2. Between the plates 3 of the laminated core, the conductors 4 of the stator winding 5 are laid. In the central part of each laminated core, there is a rectangular groove 6 in which ring cores 7 wound from a steel tape are installed, and between them an additional core 8, assembled from steel washers, is placed. The extreme parts 9 of the laminated cores are made beveled in the direction of the ends 10. In such a design, the magnetic (shown by arrows) rotor 11 is distributed more uniformly along the stator magnetic circuit, and magnetic induction over the sections of the laminated cores will be more uniform. The central part of the magnetic circuit is magnetically approximately equal to the extreme parts of the magnetic core, since an additional core of steel washers closes part of the flow in the central part of the laminated cores through ring cores 7. Some reduction in the longitudinal dimensions of the ring cores associated with replacing part of them the volume of the additional core contributes to a more uniform distribution of the magnetic flux in the ring cores themselves, since pleasing flow enters from Dauch sides with annular cores. The longitudinal section of the additional core is advisable to choose 10 to 15% of the total longitudinal section of the annular cores. The bevel of the extreme parts of the laminated cores also leads to a decrease in the mass of active steel. The invention will allow to reduce the mass of the unstressed stator of an electric machine. Claims of the Invention A strapless electric machine stator comprising a magnetic core made up of cores arranged along the longitudinal axis, covered by ringed cores wound from a steel tape, characterized in that, in order to reduce mass by improving the use of active materials, in the central part of each laminated a core with an outer side is made of a rectangular groove, in which ring cores are wound from steel tape, and between them is placed an additional core rdechnik steel washers, the end portions of the stacked cores from the outer side are chamfered towards the ends. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 309428, cl. H 02 K 15/02, 1969 (prototype).