RU1833945C

RU1833945C - Single-phase screen reduction electric motor

Info

Publication number: RU1833945C
Application number: SU894667267A
Authority: RU
Inventors: Александр Сергеевич Куракин
Original assignee: Воронежский сельскохозяйственный институт им.К.Д.Глинки
Priority date: 1989-01-20
Filing date: 1989-01-20
Publication date: 1993-08-15

Description

Полюсы 9 и 10 всех пакетов 3, 4, .5, 6 статора 2. свободные от обмоток, охвачены едиными короткозамкнутыми витками 28 и 29.The poles 9 and 10 of all packages 3, 4, .5, 6 of stator 2. are free from windings, covered by a single short-circuited turns 28 and 29.

Два зубчатых пакета 19 и 20, а также 22 и 23, ротора 21 каждой фазы смещены относительно друг друга на половину зубцового делени , а кажда пара пакетов 22,23одной фазы смещена относительно пары пакетов 19, 20 другой фазы на четверть зубцового делени .Two gear packs 19 and 20, as well as 22 and 23, of the rotor 21 of each phase are offset relative to each other by half a tooth division, and each pair of packs of 22.23 single phases is offset from a pair of packs 19, 20 of the other phase by a quarter of gear division.

Принцип действи такого двигател состоит в следующем. При включении обмоток фаз 11,12 и 13 и 14, а также 15,16 и 17, 18 в однофазную сеть возбуждаютс магнитные потоки, которые в пакетах 3 и 5, а также 4 и 6 отличаютс по фазе из-за действи а витков 24,25, 26. 27.The principle of operation of such an engine is as follows. When the windings of phases 11,12 and 13 and 14, as well as 15,16 and 17, 18, are included in the single-phase network, magnetic fluxes are excited, which in packets 3 and 5, as well as 4 and 6, differ in phase due to the action of turns 24 , 25, 26.27.

Таким образом, потоки двух фаз обмоток смещены по фазе во времени.Thus, the flows of the two phases of the windings are phase shifted in time.

Встречное включение обмоток 11, 12, 13,14.15,16.17 и 18 устран ет непосредст-, венную трансформаторную св зь между обмотками статора 2 и едиными витками 28 и 29. Взаимна магнитна св зь обмоток статора 2 с витками 28.29 осуществл етс посредством зубчатого ротора 21 играющего роль модул тора магнитного пол . Эта св зь обеспечиваетс при смещении двух пакетов каждой фазы 19 и 20, а также 21 и 22, относительно друг друга на половину зубцового делени Синфазное изменение зубцовых потоков под разными фазами происходит при смещении пары пакетов 21,22 относительно пары пакетов 19, 20 на четверть зубцового делени .The counterclosing of the windings 11, 12, 13,14.15,16.17 and 18 eliminates the direct transformer connection between the stator windings 2 and the single turns 28 and 29. The mutual magnetic connection of the stator windings 2 with turns 28.29 is carried out by means of a gear rotor 21 playing the role of a modulator of the magnetic field. This connection is achieved by displacing two packets of each phase 19 and 20, as well as 21 and 22, relative to each other by half tooth division. In-phase change of tooth flows under different phases occurs when the pair of packets 21,22 is shifted relative to the pair of packets 19, 20 by a quarter tooth division.

Токи, индуктированные зубцовыми потоками фаз в единых витках 28, 29 измен ютс с частотой о) 2 взаимодейству с магнитным полем фаз создают асинхронный вращающий момент, который приводит ротор 21 во вращение со скоростью.The currents induced by the tooth flows of phases in single turns 28, 29 vary with a frequency o) 2 interacting with the magnetic field of the phases create an asynchronous torque that drives the rotor 21 to rotate with speed.

«(1 -Sz)."(1 -Sz).

где ft) - углова частота питани . 22 - число зубцов ротора 21, Sz - скольжение, равноеwhere ft) is the angular power frequency. 22 - the number of teeth of the rotor 21, Sz - slip equal to

SzSz

(O - 2.1W2(O - 2.1W2

О)ABOUT)

В таком двигателе короткозамкнутые витки 24 и 25, 26, 27 оказывают экранирую- щее действие на магнитный поток одной фазы и обеспечивают во времени сдвиг по фазе магнитных потоков двух фаз двигател ,In such an engine, short-circuited turns 24 and 25, 26, 27 exert a shielding effect on the magnetic flux of one phase and provide a time shift in phase of the magnetic fluxes of two phases of the motor,

Электродвигатель по сравнению с прототипом не требует использовани фазосдвигающего конденсатора, тем самымThe electric motor in comparison with the prototype does not require the use of a phase-shifting capacitor, thereby

снижаетс стоимость, а также уменьшаютс decreases in cost and also decreases

габариты двигател .dimensions of the engine.

Claims

The claims

A single-phase shielded gear motor containing a stator and a winding-free rotor, each of which is made of four gear packages. spaced along the axis | the number of teeth of the stator is equal to the number of teeth of the rotor, the gear packages of the stator have distinct poles, the poles and teeth of all packages of the stator overlap, part of the poles

Each stator package has phase windings, which are connected in series and counter-wise at the poles of each package, every two packages with windings are combined in a separate phase, each winding. the phases are made of the windings of two packets connected in series and counterclockwise, the poles of all stator packets, free of windings, are covered by single short-circuited turns of electrically conductive material, each two gear packs of the rotor of one phase are offset relative to each other by half tooth division, and each pair rotor packages under one phase shifted

relative to a pair of rotor packets under a different phase by a quarter of the tooth division, with the exception of the fact that. in order to reduce the cost and dimensions of the motor, it is equipped with additional short-circuited turns of electrically conductive material located at each pole with a winding of one of the phases of the stator.

1833945

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