SU881937A1

SU881937A1 - Electric machine stator

Info

Publication number: SU881937A1
Application number: SU792793746A
Authority: SU
Inventors: Геннадий Валентинович Бердин; Виктор Александрович Иванников; Анатолий Владимирович Королев
Original assignee: Предприятие П/Я А-3581
Priority date: 1979-07-09
Filing date: 1979-07-09
Publication date: 1981-11-15

Description

1one

Изобретение относитс к электромйшиностроению и может быть использованс в электрических машинах с посто нными магнитами как с внешним, так и с внутренним индукторам.The invention relates to electric engineering and can be used in electric machines with permanent magnets with both external and internal inductors.

Известен статор электрической машины , содержащий залитый реактивной пластмассой магнитопровод, состо щий вэ чередующихс между собой магнитов и шихтованных полюсов.со сквозными аксиальными пазами, нажимные колыш и шпильки, ст гивающие полюса l1 .The stator of an electric machine is known, which contains a magnetic core filled with reactive plastic, consisting of alternating magnets and laminated poles, with through axial grooves, push pins and studs, which tighten the poles l1.

Однако в этой конструкции между магнитами и полюсами остаютс технологические зазоры, что увеличивает коэффициент рассеиваний магнитного потока , умекыпа его полезную часть, и от риоательно сказываетс на КПД машины .However, in this construction, technological gaps remain between the magnets and the poles, which increases the coefficient of dispersion of the magnetic flux, its useful part, and the effect on the efficiency of the machine.

Цель изобретени - повышение КПД путем обеспечени плотного прилегани магнитов к полюсам.The purpose of the invention is to increase efficiency by providing a tight fit of the magnets to the poles.

Указанна цель достигаетс теК«, что в статоре электрической машины, содержашем немагнитную оболочку, магнитопровод , состо щий из чередующихс меж ду собой магнитов и шихтованных полюсов со сквозными аксиальными пазами нажимные коошпа и шпильки, ст5ггиван щие полюса, пазы полюсов имеют форму , суживанмиуюс к наружной поверх |ост , например клиновидную а шпильки выполнены с радиальными резьбовыми отверсти ми и с помощью болтов, про10 ход щих через отверсти в оболочке, подТ5шуты в суженную часть паза.This goal is achieved by TeK ", that in the stator of an electric machine, containing a non-magnetic shell, a magnetic circuit consisting of alternating magnets and laminated poles with through axial grooves, pressure coospets and studs, grooves of poles have a shape narrowed towards the outside on top, for example, wedge-shaped and the studs are made with radial threaded holes and with the help of bolts running through the holes in the shell, they are threaded into the narrowed part of the groove.

С обесйечени жесткости конструкции немагнитна оболочка состоит из двух частей, вход5шшх между co6oii в With the rigidity of the structure, the non-magnetic shell consists of two parts, the input 5 between the co6oii

5 замковое зацепление, и выполнена за одно целое с нажимными кольцами.5 lock engagement, and made in one piece with the pressure rings.

Кроме того, в торцах шпилек могут быть выполнены резьбовые отверсти In addition, threaded holes can be made at the ends of the studs.

X . дл креплени подшипниковых щитов.X. for mounting bearing shields.

Claims

FIG. 1 shows a stator of an electric machine, a longitudinal section; in fig. 2 - the same cross section. The magnetic core contains alternating between one another poles 1, magnets 2, pressure rings 3 and studs 4, poles 1. In the axial grooves of the wedge-shaped 5 poles there are studs 4 with radial holes for the bolts 6 supporting them, in the narrowed part of the groove 5. The two parts of the non-magnetic shell 7 are made in one piece with the rings 3 and are interlocked into the locking engagement 8. The studs 4 end with the threads 9, the studs 4 / tucked into the tapered portion of the grooves 5, the surface of the laminated poles is flattened and tight e adhesion of the magnets 2, which reduces the technological gap therebetween, a magnetic circuit reduces the resistance and increases the main magnetic flux of the machine. This leads to increased efficiency of the machine. With the studs tightened to the shell, additional arched forces are created due to the wedge-shaped grooves, which increase the rigidity of the whole structure. The implementation of the push-rings 3 in one single with a non-magnetic shell 7 allows the stator manufacturing technology to be developed, to develop the surface and complete the KOHCIW operational design of the machine. The use of studs for fastening the bearing shields makes it possible, at no additional cost, to unload the non-magnetic shell and laminated poles from the breaking forces from the side of the bearing shields. /. 1. Claim 1. A stator of an electric machine containing a non-magnetic shell, a magnetic conductor consisting of alternating magnets and laminated holes with axial pass-through pins, pressure rings and studs that tighten poles, characterized in that, in order to improve efficiency by ensuring the magnets fit snugly to the poles, the grooves of the poles have a shape tapering to the outer surface, for example, wedge-shaped, and the studs are made with radial threaded holes and with the help of bolts passing through the holes In the shell, tucked in the constricted part of the groove. ,

2. The stator according to claim 1, of tl and h and y with the m that, in order to ensure the rigidity of the structure, the non-magnetic shell consists of two parts, INCLUDING with each other in the locking engagement, and made in one piece with pressure rings. 3, the stator on the PP. 1 and 2, in that the threaded holes for fixing the bearing shields are made at the ends of the studs. Sources of information taken into account In the examination 1. US patent number 3 488 836, cl. 29-596. 1970. 2 // L