RU94044756A - Electric motor (options) - Google Patents

Electric motor (options)

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Publication number
RU94044756A
RU94044756A RU94044756/07A RU94044756A RU94044756A RU 94044756 A RU94044756 A RU 94044756A RU 94044756/07 A RU94044756/07 A RU 94044756/07A RU 94044756 A RU94044756 A RU 94044756A RU 94044756 A RU94044756 A RU 94044756A
Authority
RU
Russia
Prior art keywords
poles
halves
rotor
motor
winding
Prior art date
Application number
RU94044756/07A
Other languages
Russian (ru)
Other versions
RU2088028C1 (en
Inventor
Е.И. Ефименко
Original Assignee
Чувашский государственный университет
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Чувашский государственный университет filed Critical Чувашский государственный университет
Priority to RU94044756A priority Critical patent/RU2088028C1/en
Publication of RU94044756A publication Critical patent/RU94044756A/en
Application granted granted Critical
Publication of RU2088028C1 publication Critical patent/RU2088028C1/en

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  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

FIELD: electromechanical engineering; low- and medium-power induction and synchronous machines. SUBSTANCE: ac motor has salient-pole stator with poles 1-4 (poles 1,3 for one phase and poles 2,4, for other phase); stator winding is built up of four concentrated coils 5 (two per phase); laminated poles 1-4 are made of axial plates axially divided into two halves connected on external side by means of jumper; stator winding coils 5 are wound either on jumpers or on each of two halves of poles; poles 1-4 are of rectangular section flush-mounted on inner side in cylindrical shell 9 stacked of plates perpendicular to pole plates (plate planes are parallel to plane of cross-sectional area); rotor is also divided in axial direction into two halves; induction motor has squirrel-cage winding placed between rotor halves and built up of bars and end rings and provided with additional end ring. Synchronous motor has field poles of two rotor halves of opposite polarity in any longitudinal section. Exciting field can be built up by field winding whose coil are wound on each rotor halve or by permanent magnets. Round holes 18 are made in magnet yoke, in the middle between seats for poles; these holes may be used for rivets; additional inner slits 19 are made on either side of holes. Size of holes and slits and their relative location ensure distribution of field curves of stator phases approaching sinusoidal form. EFFECT: improved utilization of magnetic system, reduced consumption of active materials, improved starting and running characteristics due to almost sinusoidal curve of magnetic field distribution in spite of using concentrated winding; improved reliability and facilitated manufacture of motor.

Claims (1)

Изобретение может быть использовано при производстве электрических машин, например асинхронных и синхронных машин малой и средней мощности. В предлагаемом электродвигателе повышается использование магнитной системы, уменьшается расход активных материалов, улучшаются пусковые и рабочие характеристики за счет приближения кривой распределения магнитного поля к синусоидальной, несмотря на применение сосредоточенной обмотки и достигаемую при этом повышенную надежность и технологичность двигателя. Электродвигатель переменного тока имеет явнополюсную конструкцию статора с полюсами 1-4 (полюса 1 и 3 принадлежат одной фазе полюса, 2 и 4 - к другой), обмотка статора выполнена из четырех сосредоточенных катушек 5 (по две на каждую фазу), полюса 1-4 выполняются шихтованными из аксиальных пластин, они делятся в аксиальном направлении на две половины, соединяющиеся с внешней стороны перемычкой катушки 5, обмотки статора расположены или на перемычках, или на каждой из двух половин полюсов, в поперечном сечении полюса 1-4 выполняются в виде прямоугольников, утопленных с внутренней стороны в цилиндрическую обойму 9, шихтованную из пластин, перпендикулярных пластинам полюсов (плоскости пластин параллельны плоскости поперечного сечения), ротор также делится в аксиальном направлении на две половины. В асинхронном варианте двигателя между двумя половинами ротора, имеющим короткозамкнутую обмотку, состоящую из стержней и короткозамыкающих колец располагается дополнительное короткозамыкающее кольцо. В синхронном варианте двигателя полярности полюсов возбуждения двух половин ротора в любом продольном сечении противоположны. Поле возбуждения может создаваться обмоткой возбуждения, катушки которой охватывают каждую половину ротора, или постоянными магнитами. В магнитной обойме посередине между гнездами для полюсов выполнены круглые отверстия 18, которые могут быть использованы под заклепки и по обе стороны от этих отверстий сделаны дополнительные внутренние прорези 19. Размеры отверстий и прорезей, их взаимное расположение обеспечивают распределение кривых полей фаз статора, близкое к синусоидальному.The invention can be used in the manufacture of electrical machines, for example asynchronous and synchronous machines of low and medium power. In the proposed electric motor, the use of a magnetic system is increased, the consumption of active materials is reduced, starting and performance characteristics are improved due to the approach of the magnetic field distribution curve to a sinusoidal one, despite the use of a concentrated winding and the increased reliability and manufacturability of the motor achieved. The AC motor has a clearly polarized stator design with poles 1-4 (poles 1 and 3 belong to one phase of the pole, 2 and 4 belong to the other), the stator winding is made of four lumped coils 5 (two for each phase), poles 1-4 are made from axial plates, they are divided in the axial direction into two halves, connected on the outside by a jumper of the coil 5, the stator windings are located either on the jumpers or on each of the two halves of the poles, in the cross section of the pole 1-4 are made in the form of a rectangular nickels recessed from the inside into a cylindrical ferrule 9, bursted from plates perpendicular to the pole plates (the plane of the plates parallel to the plane of the cross section), the rotor is also axially divided into two halves. In the asynchronous version of the motor, between the two halves of the rotor having a short-circuited winding, consisting of rods and short-circuit rings, an additional short-circuit ring is located. In the synchronous version of the motor, the polarities of the excitation poles of the two halves of the rotor are opposite in any longitudinal section. The field of excitation can be created by the field winding, the coils of which cover each half of the rotor, or by permanent magnets. Round holes 18 are made in the magnetic holder in the middle between the pole sockets 18, which can be used for rivets, and additional internal slots 19 are made on both sides of these holes. The dimensions of the holes and the slots, their mutual arrangement provide a distribution of the curved fields of the stator phases close to sinusoidal .
RU94044756A 1994-12-19 1994-12-19 Electric motor (options) RU2088028C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94044756A RU2088028C1 (en) 1994-12-19 1994-12-19 Electric motor (options)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94044756A RU2088028C1 (en) 1994-12-19 1994-12-19 Electric motor (options)

Publications (2)

Publication Number Publication Date
RU94044756A true RU94044756A (en) 1996-10-27
RU2088028C1 RU2088028C1 (en) 1997-08-20

Family

ID=20163313

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94044756A RU2088028C1 (en) 1994-12-19 1994-12-19 Electric motor (options)

Country Status (1)

Country Link
RU (1) RU2088028C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2544720A (en) * 2015-10-15 2017-05-31 Vastech Holdings Ltd Electric motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2468490C1 (en) * 2011-09-21 2012-11-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Single-phase electric motor
RU2510120C1 (en) * 2012-09-18 2014-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Single-phase induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2544720A (en) * 2015-10-15 2017-05-31 Vastech Holdings Ltd Electric motor

Also Published As

Publication number Publication date
RU2088028C1 (en) 1997-08-20

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