DD215656A1 - ARRANGEMENT FOR DISTANCING THE RADIAL COOLING CHANNELS FOR PIPE COILS - Google Patents

Abstract

The invention is applicable to transformers u. Reactors. The aim of the invention is to increase the degree of mechanization in prefabrication and to reduce assembly costs during winding. An arrangement should be found, i. it allows to wind directly on the insulating cylinder and has, inter alia, sufficient strength with respect to a support in the radial direction. This is achieved by the inner narrow sides (2) d. Spacers (1) are adapted to the insulating cylinder (7) so that they protrude radially beyond the winding with their longitudinal sides (11) and their radially outer narrow sides (3) have approximately "T" -foermige recesses, that in these recesses (4) at least during the winding assembly made of insulating material correspondingly shaped strips (9) and / or strips (8) are arranged, and that they have in a conventional manner from the Laengsseiten (11) ago slanted slots (5).

Description

Field of application of the invention:

The invention is applicable to transformers and inductors and relates to an arrangement for Disfanzierung the radial Hühlkanäle in tube windings from disc coils, which directly on the insulating or 3.ui 8ine 2ssc2i2.essens ΤΤΤΤ ιΐerlsx-s sus Zsolier ^ s ^ s-

a coil winding consisting of plate coils for transformers and choke coils for fixing the bistan pieces, teeth layers, spacers and the like, to arrange IC cooling channel strips

λ ι 2 χ * "*"! 0.3ITl ^ * ^ ¹ rt "ρ ί" π T " ¹ ~" ^ * 3 yy. As a result, the main insulation distance is measured uneconomically large * ¹¹ "^ ¹¹ JI 'S TI X * ^ Ή ¹ ^ - 2" ^ * ¹ V ^, Cτ ¹ "T ^ ^ * 3 ¹ ^ ^ri ^" ^ axial cooling channel The waiver of the aiiialen cooling channel strips forming the inner cooling channel, however, requires that new possibilities for holding and fixing the spacers must be sought, which meet all requirements, both technically and economically. Shown are a Ti el ζ aiii spacers, spacers, spacers, brackets and the like of insulating material, which are arranged in "windings of transformers and inductors .. and serve, axial and radial cooling channels for dissipation of the Stromv? Arms and ₍ ii) axial flow channels run parallel to the axis of the flow, and that radial cooling channels are perpendicular to the axis of the dispersion and that they are at a certain distance between them

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Channels with cutouts of any kind. Cross-section, in which the spacers of the axial cooling ~ channels with entsprililend trained approaches are tightly singssteckt, and gieiciizeitig the spacers of the axial Kühikanale engage with protruding parts of their approaches in holes or recesses of the nearest spacers of the axial cooling channels

Audi is known to apply along the circumference of the Isolisrzylinders strips of insulating material, which serve to receive strip-shaped Isolierstofflaschen and the holding directly on the Isolierstoffstreifen mounted individual 77icklungsspulen include (ERB-PS 1002074).

3s further spacers of the radial cooling channels are known, which are completely wrapped with hcchspannungsfestern, edge shielding on both sides protruding paper, its sine around one or more conductors or a spacer of the axial Kühlkanais

Rich PS 258 405) ·

In a further arrangement for the distancing of the radial cooling channels, it is provided that the spacer has a recess serrated at its edges and that a holding piece is provided, which z.3. is clamped in the first axial cooling channel and on his long sides has a toothing, with which it in the ^; The toothing in the recess of the spacer or on the longitudinal sides of the holding piece is shaped such that in the position of the arrangement the one tooth flank is tangential to the toothed flank of the spacer Winding and the other

The tooth flank extends in such a way that the extension of the tooth flanks of two teeth lying opposite each other in the cutout form a brepe whose tip lies on the longitudinal axis of the spacer and points radially outward. Thereby, it is achieved that the spacer can be slid radially inwards from the inside of the retaining piece "" by means of a fine-level tolerance compensation at the distance between the fastening point of the retaining piece and the inner diameter of the coil.

Another solution for the attachment of the spacer is in this case an arrangement in the direction Arialerinsungsmittels between z.eii 77 "," z.3 is provided stripes, in the toothing of the east -. / rev \ i ii-β ο <3 J-XX αο υ υ C \ iro -JlJ- ι \ ^ ι ^ w> j »

Finally, an arrangement for distancing the "radial cooling channels is known, - in which the spacers are fixed at a certain distance on a ring segment made of insulating material (eg by dowels}, no in the 'attachment of the Hingsegmente to the VJicklung turn, basically outside When the ring elements are designed as angle segments, they are firmly clamped between the insulating cylinder and the disk coil (DD-PS 102235).

However, all of these known Zvjischeniagsn, spacers and the like intended for use in Scheibenpulenisicklungen without cooling channel on the inner winding diameter adhere to a number of; Disadvantages.

So is not sufficient mechanical strength of the holder of the spacers, especially in the radial direction when feeding the winding and short-circuiting

load, given. Also, there is no safe closure of the spacers with the innermost binding of the coil due to lack of tolerance compensation for Spuleninnendurohmesser back, whereby a high amount of Anpai3arbeit in the assembly of the spacers in the coil crossings required jird, because the axial cooling channel in this area his' distance to the insulating cylinder in the initial direction of the "change changed"

In addition, one inevitably missing axial Mittenubereinstimmung the spacers according to the division, and the length compensation ir. Axialer- 'and radial. Direction. In addition, another high Fertigungsauf τι and at the ".vickelbank due to complicated Sinzelteilniontage.

Object of the invention:

jus is the object of the invention to increase by an advantageous embodiment of the Distanzieranordnung for the radial Eühlkanäle and their support the L-Iechanisierungsgrad in Torfertigung and reduce the Mont ageaufwand to the ITickelbank.

vvesen the, uirfinduna: /:. _; ·. The technical task ^:. : ^v; -;

The object of the invention is to find an arrangement for the distancing of the radial cooling channels, which allows the disc coil directly on the Tsoli.erz;

linder to wrap or to arrange on a closed base of insulating material, which is sufficient mechanical strength iri respect to? It has a support in the radial direction, and guarantees a secure closure with the innermost and outermost point of view, as well as an a ialial interference between the radial distarz pieces of adjacent disc coils, ensuring a radial and axial length compensation

Features of the invention:.

ZrfindungsgemaB the object is achieved in that the in the TJickluns: radially inner narrow sides of the Z77ischen _% the disk coils radially at a certain distance and axially superimposed spacers in domestic

τ »d" r * T? r "1" ¹ ^ fT * ¹ ^ ^ "" "^ ¹ T1" ^ Γ »" h rn cl. cz. ei - ^. ~ * rip ς T ς Λ1 τ ρ ? * 7Tr "τ ^." Α ^ ς α "^ γ * ^. ^ - ο '3 "f" SiuUj UcLO ϋ ύ IU X I / iiiivii j_ciij.g, ο ο S j. M fc; Xl Ui-βί extends beyond the extension of the taper and its radially outer narrow sides have approximately "T" -shaped recesses, the stems of which point radially outward, in which the axially superposed one another the individual disc coils lying spacers' at least during Tsicklungsmontage on the ^ ickelbank in the direction of 77ltltltachse extending and off. Isolierstoff correspondingly shaped strips, and / or strips are arranged ^ and da.3 they have in a conventional manner alternately oblique slits from both sides thereof '',

Torteilhafter manner have the radially inner narrow sides of the spacers ⁷ form sines obtuse .Dreieckes with- rounded Lvcken. By means of the invention, an arrangement of the winding directly on the insulating cylinder is possible, ie without

s e ction of. Lying on the isolierz3rlind.er or .. without specially trained retaining elements. In fact, it has been found that by adapting the radially narrow sides of the spacers to the diameter of the insulating sleeve, sufficient guidance in the circumferential direction and sufficient alignment in the recesses of the spacers by the strips and / or strips Axial direction are guaranteed. By the feeding of the finished winding on her azi3 Ma3 spacers are determined in such a way that a shifting or falling out are not feared nut.

' Execution at game: -

The invention will be explained in more detail below with reference to an exemplary embodiment.

 In the drawing, show:

Fig, A and 2: each a spacer, but with

differently shaped radially inner narrow side;

Fig. 3: a part of a winding, cut; Fig. 4: a part of a winding as a plan view,

Between the 'disk coils .6 are' to. Production of radial distribution channels. Distanzstück.1 inserted, the radially innen.n narrow sides 2 either 'bogenföririg or else, also triangular with rounded edges the. Diameter of the winding cylinder 7 are adapted. Up to the winding radially outward narrow side !: 3 der

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Spacers 1 have approximately "T" shaped recesses 4, the stems IC of which point radially outward, into which recesses are correspondingly shaped strips 9 and / or strips S of insulating material, at least during the assembly of the coil placed on the folding bench. The strips 9 also serve as a carrier of another insulation cylinder shown at night.

The known oblique slots 5 from the longitudinal sides 11 of the spacers 1 serve dem'radial length compensation.

Claims (2)

-ri -p η τη .ö ρ 1. Arrangement for aligning the radial flow channels in the case of Eohrsnick lengths of disk coils, see directly on the insulating cylinder or on a closed ITn- ri ~ ρ r ~ ρ: ορό e + ρ ri 7 c τΐΐ λ Vc Τ'ΤΓ "! 3f'r = n .-: g: η"p'pci'neTicnr ¹ s rM cestiiDiiiteiii distance and are arranged axially one above the other, 77i they have oblique slots from both sides, ge Ic = η η ζ ei without t d & 3, the radially inside left narrow sides (2) of the spacers (1) in shape to the diameter of the insulating cylinder (7) are fitted with their longitudinal sides (11) over the radial Hi outer narrow sides (3) have approximately "T ^ -shaped recesses (4) whose stems (10) radially outwardly to show, and da3 in these recesses (4) / bobbins (6) lying spacer (1) at least during the winding assembly on the Ivickelbank in • direction of the winding axis "running and of insulating material correspondingly shaped strips (9) and / or strips (S) are arranged, 2. Arrangement according to items 1- ,. The adaptation of the radially inner narrow sides (2) of the spacers corresponds to the shape - ^ * "'-."' - th. , _T. '. For this purpose: 1 sheet of drawings I '.