SU771806A1

SU771806A1 - Electric machine stator

Info

Publication number: SU771806A1
Application number: SU782695235A
Authority: SU
Inventors: Виктор Михайлович Петров; Владимир Евгеньевич Коркин; Эдуард Алексеевич Мотин; Николай Иванович Леонов; Юрий Григорьевич Ивченко; Эдгар Арнольдович Бауман
Original assignee: Предприятие П/Я Г-4012
Priority date: 1978-12-12
Filing date: 1978-12-12
Publication date: 1980-10-15

Description

(54) СТАТОР ЭЛЕКТРИЧЕСКОЙ МАШИНЫ(54) ELECTRIC MACHINE STATOR

1one

Изобретение относитс к электромашиностроению и может найти применение, например , в электрических машинах кратковременного режима работы, автомобильных генераторах и электродвигател х.The invention relates to electrical engineering and can be used, for example, in short-time electric machines, automotive generators and electric motors.

Известны электрические машины, содержащие статор с обмоткой, лобовые части которых размещены в оболочках 1.Known electrical machines containing a stator with a winding, the frontal parts of which are placed in the shells 1.

В этих электрических машинах отвод тепла от обмотки интенсифицируетс за счет применени оболочек лобовых частей.In these electric machines, heat removal from the winding is intensified through the use of front shell.

Наиболее близким к изобретению по технической сущности вл етс статор электрической машины, содержащий сердечник с каналами на наружной поверхности, обмотку с лобовыми част ми, заключенными по меньшей мере в одну оболочку, и расположенные в упом нутых каиал.ах элементы соедин ющие оболочку с сердечником {2.The closest to the invention in its technical essence is the stator of an electric machine, comprising a core with channels on the outer surface, a winding with frontal parts enclosed in at least one shell, and elements in the mentioned cial that connect the shell to the core { 2

Недостатком известного технического решени вл етс то, что применение продольных выступов приводит к увеличению расхода материала.A disadvantage of the known technical solution is that the use of longitudinal protrusions leads to an increase in material consumption.

Целью изобретени вл етс уменьшение расхода материалов.The aim of the invention is to reduce the consumption of materials.

Цель достигаетс тем, что оболочка имеет каналы на наружной поверхности, которые выполнены в осевом направлении и вл ютс продолжением хот бы части каналов сердечника, а элементы, соедин ющие оболочку и сердечник, имеют удлинени , расположенные в каналах оболочки. . Оболочка лобовых частей выполн ет роль защитного средства обмотки от меха;Нического повреждени и может служить также объемом дл размещени охлаждающей массы.The goal is achieved by the fact that the shell has channels on the outer surface, which are made in the axial direction and are a continuation of at least part of the core channels, and the elements connecting the shell and core have elongations located in the shell channels. . The shell of the frontal parts serves as a protective winding for the fur; It is of a physical damage and can also serve as a volume for placing a cooling mass.

Оболочка может быть выполнена из металла или диэлектрических пластических масс, например, полиэтилена.The shell can be made of metal or dielectric plastics, for example, polyethylene.

Оболочка может быть выполнена различной формы, например, в виде двух коаксиальных цилиндров, соединенных с торца перегородкой.The shell can be made of various shapes, for example, in the form of two coaxial cylinders connected to the end of the partition.

1515

Соединительные элементы могут быть выполнены в виде металлических скоб или путем заполнени каналов сердечника и оболочки склеивающей массой, например, эпоксидным клеем.The connecting elements can be made in the form of metal brackets or by filling the channels of the core and the shell with an adhesive mass, for example, epoxy glue.

Claims

On the end surface of the shell opposite to the stator core, grooves can be made, in which cocks of connecting elements are bent into these grooves. These grooves can be made in the form of an annular groove or internal pockets. Rejected ends of the connecting elements in the form of staples can be connected to the surface of the shell by welding or soldering. On the end surface of the casing adjacent to the core of the core or on the end surface of the casing adjacent to the denzal zone of the core, an annular groove can be made with a sealing ring installed in it. The fastening elements of the electric machine, for example, to the foundation, can be made on the connecting elements. FIG. I shows the stator of an electric machine, comprising at least one shell of the frontal winding parts with channels on the outer surface, which are a continuation of at least part of the core channels; in fig. 2 shows an isometric view of the shell, on the end surface of which, on the side opposite to the stator core, a recess is made in the form of an annular groove; in fig. 3 shows an isometric view of the shell, on the end surface of which on the side opposite to the stator core, grooves are made in the form of internal pockets. The stator of an electric machine contains a core I with channels on the outer surface, a winding with frontal parts 2, and a shell of three frontal parts. On the outer surface of the shell is made of the channels 4 in the axial directions. The shell 3 is located relative to the core I in such a way that the channels 4 are an extension of the core channels. In order to connect the shell with the core, the connecting elements 5 are located in the said channels. On the end surface of the shell opposite to the core there can be made notches 6 into which there can be. () Bent ends of connecting elements. The notches 6 can be made in the form of an annular groove or internal pockets. The connecting elements can be made in the form of metal clips or obtained by filling the channels of the shell and core with an adhesive mass, for example, epoxy glue. The bracing elements can be bonded to the surface of the shell by welding or brazing. In order to seal the connection between the sheath and the core, annular grooves 7 with sealing rings installed in them can be made on the end surfaces of the sheath adjoining the му rm and the teeth of the core. On the connecting elements can be made element 8 attachment of an electric machine to the foundation. Made a prototype of an electric machine with a capacity of 500 watts. Experience shows that in the manufacture of an electric machine with a casing according to the invention, the material consumption is reduced by 110 g due to the reduction of waste. The economic effect in the manufacture in 1980 of 500,000 short-time electric motors will be 16,500 rubles. Claim 1. An electric machine stator comprising a core with channels on the outer surface, a winding with frontal parts enclosed in at least one shell, and elements arranged in said channels connecting the shell with a core, characterized in that whole material savings, the shell has on the outer surface axial channels, which are a continuation of at least part of the core channels, and the elements connecting the shell with the core have elongations located in the shell channels. 2. A stator according to claim 1, characterized in that the ends of the elements connecting the shell with the core are bent and the end surface of the shell opposite to the core has recesses in which the bent ends are located. 3. A stator according to claim 1, 2, characterized in that the end surface of the shell on the core side has an annular groove with a sealing ring located therein. 4.Stator on PP. I, 2, 3, characterized in that the elements connecting the casing with the core are provided with parts for fastening an electric machine, for example, to a foundation. Sources of information taken into account in the examination 1.Patent of Germany No. 2503574, cl. H 02 K 5/16, 1976.

2. USSR author's certificate for application No. 2494712/24-ОГ, cl. H 02 K 5/18, 1977.