DE1982496U - ELECTRIC MACHINE WITH MAGNETIC GROOVE KEYS. - Google Patents

Description

PA-B017374-11.8.6?

SIEMMS ■ AüSDIMG-SSEIiIiSCHäP T Berlin- und Manchen.

PM 67/0093

LÄUG. 19G7

Electric machine with magnetic sides ■.: - ■ ... key:

Ee is known to have open hats? Oa elektrlsehsn. la-eeliinen toreh iBiagnetisclie lutenTöi sciilu8keile 'zu' - YeräcÄliefeii, "in order to avoid large additional losses .. Jedocb bergiiei; - es.

keiten ,; set the magnetic HutenversciiluÖksile _v ier dead so hard 'that they all stress m & csiimmiB & te ^ atsnäh & can lten "Ins" particularly, the magnetic ffuten ^ ir during operation of the elekferis: elien lagehine by g forces resulting from the transverse field, which in Ihythiaus;. Every double Eetzfrequency change their sighting, claimed, so that exe

can loosen. .

S7 / G895 -

Ss is already known, electric in the grooves - Ia © ehineη under the winding conductor insert resilient element mm corrugated steel IxLBQh, characterized inter alia the winding cross mi their Mugs- 'riefet uzig against the fasteners laughing mu. press mii. stipulate «these springy elements aue steel feafeem rtsr den -lackte il that they have a comparatively much construction» in the lut in the verse

that

take, short-circuits between lead ore: eugen and / their spring force in each case only transferred point by point to the "nearby file will ο

Purch the novelty will improve such a clutter. G-eifläß of the innovation are the dnet plastic "besteMenaen, acting as clamping elements inserts between the magnetic Jfutenversehluikeil and bef in the groove indliehen. Pattern angeQ and lie over the entire length of the groove snugly against the top. Faces of _o Dadurcn is the entire Iiinge the groove. between the Nutenverschlu ^ wedge and the winding conductor tentinuierlich a radially directed bias generated "Juch with small dimensions of the inserts is this bias ■ 'rumbling gBmxg? uis the harmful effects of double letzffequenß changing raagnetischen forces aside, , '.- ..' .-.

The side dishes can be in two sizes. I “is also made of a plastic with a guiami-like elasticity, such as, for example, made of silicone rubber”.

In implementing the idea of innovation, it is advantageous if the inserts consisted of a plastic that was only released during the

- 2 - "" ■■ ■

PM 67/0095

first warming de ;. Machine and then as, acts. This is the case when assembling the magnetic hat fastener part, which generally has a lower mechanical strength instead of a wedge made from a metal material. sits, no radially directed spring force on the insert. Only after the machine has been warmed up to operating temperature for the first time, which can be relatively high depending on the insulating material left in the machine ₅ does the LED take effect. Bie wtinsGhtg 0rc> le äer Torspaimung can be required both by the selection ae & Uatwlmls% & with regard to the position of the softening temperature in relation to the operating temperature and by the strength άβτ mr Ir zeugwag: the spring effect. lent procedures the mechanical deformation can be influenced. :

Such a supplement cannot be spring-loaded at room temperature from a cross-linked, thermoeiastically deformable, high aole- .'- .. Cular ICoplastic, such as.-e.g. hardened Mewhnr «(epoxy resin or unsaturated iolyester) or linked & t polyaerized G-eiaische.i consist of Yiny! Monomers. Additional definition of the feather properties at operating temperature of: Beilageua. recommends it themselves, these networked, thermoeiastically available, highly aiological Plastic with a sub-zero temperature the electrical machine lying in the middle a sufficiently far above the softening file range and the operating temperature the machine lying iesiper & iur vertically.

-: ■. ■■■■. : ■ - 3 -

PM & 7 / 00B3 SÄ

exit longitudinally across the broad side of the supplement see below and then freeze in the compressed state, so that at the temperature prevailing during operation of the electrical machine, a radial spring force is achieved.

Thermoplastics in foil form can also be used as an insert, which has been deformed into thin layers by a rolling process at a temperature in the range of the temperature range. When heated to the operating temperature above the softening temperature, these foils strive to regain their original strength so that a resilient effect occurs. Such films can consist, for example, of high molecular weight polyethers, which can be produced by condensation of bisphenol A with epichlorohydrin or by ionization of high molecular weight epoxy resins based on bisphenol M - other bisphenol. -.

Such, through a preceding mechanical *! forming process8 produced resilient side dishes also have the gate part, that the desired preload is achieved at operating temperatures, readjusts automatically.

Another advantageous option is to use an elastic tube as an attachment. z -.- B. . from a film, to be used, which is expanded so much with a η subsequently injected filler material that S3 the. desired door tension

■■■■ - - iLI '-67/0093 SÄ

zw, schert, the slot wedge and the Wieklungsiedtern received will. With this arrangement, too, the desired: Tension the insert only after inserting the lute wedge produced in the lut, so that the illasticity de attachment not the assembly dee lut envergcMu: lke lies hindered »

The one in Bu; The layers used to implement the idea of hiring can also have a multilayered structure, with continuous, non-resilient exterior layers guaranteeing that the surfaces of the neighboring parts fit snugly, so that even when one of several consecutive parts is used Individual parts - existing middle resilient layer which is secured in the longitudinal direction of the lut.continüierliehe transfer of the prestress. . _:

In FIGS. 1 and 2, exemplary embodiments of the control are shown schematically. The figures each show a section of the line 1 of an electrical machine in which a bundle of cables 2 is located. Bie groove 1 is through; a magnetic lock wedge 3. which consists, for example, of epoxy resin filled with iron powder. The insert 4, which acts as a tensioning element, is arranged between the magnetic lute lock wedge 3 and the bundle of conductors 2. This supplement 4 consists in the outer embodiment shown in Figure 1 of Ipo ^ ydharis with an epoxy number of 0.2 to 0.3> which was cured by polymerization with a tertiary area. The Irweiohungst em $ e ~ temperature of this mold material is below ier in the lut corresponds. .. ■ 'standing operating temperature ₀
■ -. '■ - ■ -' ■ - ■. ". - 5 - ■■ '■'" ■■. ^:

. ■ '■ ,: ■■ ..-. 'Λ> M 67/0093

In order for the enclosure 4 to generate a radial preload between the magnetic, lutenTersöhluikeil 3 and the bundle of conductors 2, the enclosure 4, before its installation in the hat 1, was perpendicular to its longitudinal direction over the broad side of at a temperature above its irradiation temperature an originally larger bead, compressed to a thickness which approximates the space available between the hat fitting 3 and the bundle of conductors 2 at low temperatures. In this compressed state, the enclosure 4 was frozen !. therefore, no forces on the environment, so tHe the inführen the MAGN ch & n luten- breech wedge 3 does not hinder = While the operation of the electrical machine, the winding takes. dureh normal \ warming gradually a temperature at which it above the - '■ the setting temperature of supplement 4 is ο laduröfe _w ill be the egg The frozen state of tension is resolved and the supplement tries to regain its original shape. If the insert is placed on the surfaces of the neighboring skins, it creates a gate tension that acts in a radial direction so that the magnetic lute lock wedge is pressed firmly against the boundary walls of the butt and therefore on the outside; the changing magnetic forces cannot make any movements. ; '■ "'

In the example shown in Figure 2 is ai & Äusführungsbeisrpiel examples: · location 4 of a hose 5 from a elastisüiien FoIIe ₈ after insertion of the magnetic Sutenversehlulfeeiles 3 in - '. ■■■■ ■■■. - ^: "- 6- -: ■■ '- ■■:. ■■ - ■■ ..;

67/0093

the $ 3ut through the filling compound 6, consisting of h »1. Made of a hardened, heat-resistant plastic, expanded wtrü. The filling compound 6 is under pressure in the hose. eiitigep-reEt, a® desired, thrown in the radial direction YöT & $ arnmitg is obtained, which is sufficient to fix the jaagnetic lutenyeracalii wedge in such a way that it cannot be loosened by the iaagnetic forces.

9 speeches
2 Fi

- ■ 7 -

Claims (1)

PB017 374-118.67 67/0093 S chute claims 1. Electrical machine, the hats of which are closed with an ms gnetischten HutenversehluSkeil and contain federate inserts, characterized in that Iestehende plastic inserts (4) acting as clamping elements arischen the magnetic groove locking wedge (3) and in the courage (1 ) "located ladders (2) are arranged and over the entire length of the lut (i) ran up against their overflight» 2. Electric machine according to.-Aaspruoh. 1, dadurcli gelcennseiöiinet _s that the enclosure (4) consists of a plastic Mt guaiiai ^ like elasticity » 3 »Electrical machine according .Anspruch 1, gekennzseichnet characterized in that the enclosures (4) of a plastic _s best lien of only: during the first heating of the machine acts as a tensioning element" 4 »Electrical machine according to claim 5, dadurcli. characterized ,, that the insert consists of a crosslinked, "therm: oelastisch deform-", high molecular weight plastic with a temperature below the operating temperature within the groove, which is at a temperature above the expansion temperature and the loading. drive st emp era door lying temperature perpendicular Bur in the longitudinal direction of the supplement over the broad side was compressed and frozen in the compressed state » . ΈΈ & 6T / ÖÖ93 SM 5 »Electrical machine according to claim 3, characterized in that that the supplements (4) consist of high molecular weight SherMoplastea, the door through a rolling process near its eruption have been deformed into thin layers " S. Electrical machine according to claim i, characterized in that that the insert (4) consists of an elastic tube (5), which is expanded with a filling compound (6), 7 “Electrical machine according to claim. 6, marked daiuroii, that the filling compound (6) only after the introduction of the Löagnetic. Lutenverschlußkeileö '(5) in the hose like wiri. 8. Sheet metal machine according to claim 1 or J ₉ öaiurch. marked that the enclosures: (4) they are built up in layers and continuous, non-resilient outer layers guarantee the full surface of the adjacent parts. 9. Electrical machine according to .Ansprucli S, dadSrcli marked, that the middle resilient layer of several, in the longitudinal direction successive individual parts "consists of ,,.