FR2518305A1 - AMORPHOUS METAL CORE WITHOUT SEAL FOR ELECTRIC INDUCTION APPARATUS - Google Patents

Abstract

AMORPHIC METAL CORE WITHOUT SEAL FOR INDUCTION ELECTRICAL APPLIANCES. THE CORE 10 IS CONSTITUTED OF A CONTINUOUS BAND OF AMORPHOUS METAL WOUND ON ITSELF SO AS TO FORM CONTIGUOUS LAYERS 12. AN UNAMORPHATED METAL MATERIAL IN A BAND 24 INTERNALLY REINFORCES THE CORE FORMING A CONTIGUOUS AND PREFERABLY LAYER 12A THE INNER LAYER OF THE AMORPHIC MATERIAL. A SEALING AGENT 70, APPLIED AT LEAST ON THE EDGES OF THE CORE, MAKES THE LATTER SEAL TO LIQUID DIELECTRIC. AN INSULATING ENCLOSURE 71, ALSO SERVING AS A REINFORCEMENT, CAN BE POSITIONED ON THE TRUNK (S) OF THE CORE AROUND WHICH AN ELECTRIC WINDING 72 WINDING. APPLICATIONS IN PARTICULAR TO TRANSFORMERS AND EQUIPMENT WITH SIMILAR INDUCTION.

Description

Metallic core amtirp 'ze blood seal for electric appliance

induction.

  The diluent arises in one week and the apparatuses and apparatuses.

she concierge more than a nucleus.

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anorl; ,, e in band.

  A matte material in a band Pr -, -

  losses in the iron, luo lion c) -w Lo: ,, -I DheCe-

  during this time, a material that is very thin, very fra-

  q and very hard the rec-a mat 6, rir 7 ia amor-

The third edition of

  its elasticity and flexibility All these features are

  have disadvantages in the manufacture of cores

in amorphous material.

  A difficulty associated with the construction of amorphous material cores concerns the manner of mounting the electrical winding (s) around the core. As mentioned above, the technique used to mount a winding around

  a core of non-amorphous material, which consists of introducing

  It is due to the fact that a core of amorphous material is less elastic and less flexible than the core of amorphous material. a core of non-amorphous material, and it is therefore more difficult

  to flexibly open a joint in a core of amorphous material

  phe to mount the winding, without bursting or breaking

  This is not desirable because the

  stresses imposed on the core pervernt to greatly increase the losses in the iron handling of the nucleus for reasons other than mounting the bcbinage, may also impose

core constraints.

  Because of these considerations, the present invention

  Its purpose is to reduce the difficulties of moining and handling due to the fragility of a magnetic nucleus.

amorphous material.

  A more particular object of the present invention is to provide a seamless amorphous material core, which is less likely to be damaged during mismatching.

  of the core and the mounting of one or more electrical windings

cids, around the nucleus.

  As will be seen below, the magnetic core de-

  crit is formed of a strip of amorphous material wound on itself to form contiguous layers. The core comprises an inner frame of non-amorphous metal material Lque, arranged radially inward and contiguous to the innermost layer formed by the strip of amorphous material A coating is placed on the core to isolate it

  tightly and make it airtight and / or oil-proof.

  Insulating paper can be placed around a section of the core.

  This insulating paper strengthens the core and an electric winding

  can be wrapped around the insulation paper.

  The present invention will be well understood by reading

  of the following description made in relation to the

enclosed, in which:

  FIG. 1 schematically illustrates a master kernel

  which is an example of the realization of the present

  the invention; and FIGS. 2a to 2c show diagrammatically stages of fabrication. FIG. 1 shows the magnetic diagram of the drawings, and, in particular, FIG. 1. The coiled magnetized nickel, denoted by the general reference numeral 10, is particularly appropriate for

  be used in a triraerou in an electrical appliance

  This induction core consists of an

  ii continuous band of er i-ieroul Cée on itself miia-

  In this way, it is possible to provide layers of cylindrical elements in the form of a closed casing which is capable of constituting the nucleus. For example, it is an amorphous striped material manufactured by Flld. -C, _d -pony '"METGLAS" is a mark depesed dsgm y alloy-i 3 usemr; hs has bricked by Allied' "L These Yau-e r rounds, J Aem, RIernt rectangular, ra Nrren-Sente la 1, or take all the right angles In the case of the rectangular box 1, the circle 1 00 comprises the opposite colonils 14 and 16, and the upper row 13 and a cross-sectional area 14 This is not a reason for spinning a nail on the core, winding 72 is mounted on the r-oe, at 10 nr. Winding around a troaton

  of the latter, coru-e U 3 es': well known to the man of art.

  Referring now to FIG.

  It is a procedure for the induction of a kernel from a continuous strip of amide metal and of a non-amorphous metal conglomerate. As shown in FIG. 2a, a horizontal strip 22 of amorphous iittal is Jor acesur own coil 315

  to be wrapped next around a cylindrical handdrin 90.

  A non-amorphous metal strip 24, such as "Hoipersil", which is a grain oriented silicon steel manufactured by Armco

  of Butler, Pennsylvania, is placed on the spool 45 in order to

  be wound also around the mandrel 90.

  The method of manufacturing the core 10 comprises the

  rolling the amorphous metal strip 22 and the non-amorphous metal strip 24 around the mandrel 90 so as to form an initially round core designated by the general reference The coils 35 and 45 are placed relative to the mandrel

  so that when the bands 22 and 24 are wound up

  on this mandrel, the band 24 forms the innermost envelope

  The band 24 is therefore close to the innermost layer formed by the strip of amorphous material and is

  turned towards the opening 6 (figure 1) of the core 10

  Unlammed layer 80 of the core 10 is therefore formed by the

  band 24 The length of the band 24 will be substantially less than

  than that of the amorphous metal strip 22 since this

  24 only forms the envelope or layer most

12 to the core 10.

  This inner envelope of the nucleus, which is

  killed by the metal "Hipersil", strengthens the core and makes it more

  The band 24 prevents the amorphous and brittle material

  storing the core, being damaged during assembly or

very handling of the nucleus.

  The process of winding the non-amorphous material into

  tape on a mandrel is described for illustrative purposes only.

  Many other methods could be used to form the core which is the subject of the present invention. For example, a strip 24 of non-amorphous material could be

  placed by hand around the mandrel 90 and the strip 22 of material

  In the same way, the strip 24 of non-amorphous material could consist of several distinct sections instead of forming a continuous strip of material as shown in FIG. After the core 100 has been formed by winding,

  the final form of the core 10 can be obtained using the

  the clamping device shown in Figure 2b.

  has several internal and external clamping plates 50

  which are part of an appropriate clamping device designated by the general reference 52. This apparatus 52 comprises

  means (not shown) which make it possible to adjust the distance

  different plateaux and the location of these plateaus.

  to each other in order to give the core

  the desired shape In FIG. 2b, the round core 100 represents

  2a, was transformed into a core 10 of shape

  rectangle such as the naoyetu repre-felt 5 In FIG Comn-

  represents to me the igur-? bh, u: Äonn of the cectantgu-

  surrounded by J Ynbtng, who is connected

  S té a, a Rewort 576 7) Alon Militie; r z; & er Wells the bcr ID yall to a rz, z a I gas' t nei c; rcr u (ï A A j j j f f f f "d

and there

  3 C o ntly, e-e-e-e-e-a-omco i L rst p-titetrapplci-ti -u -u 7: 1 -se rsule of HE fOy 1 "9 OR only on facefome ae [0003] As a fradamhant Nade, deferment CU various different suenyu to xmpe'o etimre the core 10 in a tank 40 containing a plastic sealing agent 42, such as "Seal-Peel Peel, Inc., Troy, Michigan. Alternatively, the core may be immersed in protective varnishes of various types, such as L 142-1 and B 225 varnishes manufactured by Letestincdhouse Electric Corporation, Benolite Department, Manor, Pennsvlvu, Arie. One can also apply on the core 10 a urcduit available on the market under the name "Edge Mast 1st" _fl Cqur -pr Pittsb T-Urgh Plate

  Glass Coimpiany, Ahsv Products N Bloomfield, New, -

  In addition, it is possible to form a coating 70 on the electrode or on the electrostatic precipitator.

  comn: Terciallized by the company at 3 'M of U1 Jneapo Iis, M-innesota.

  It is possible to use gelatin, a polyurethane foam, a fluorescent agent, of the type known under the name 730. Ri LV 'made by Dot-onn, 4 da, 4 cnn : this-resente Figure 1, the nucleus 15 -u iluú c glet: insulating apoz 7 I q ai lnec: eri, (vyau, on lec; uel is wound boiae 72 MI more

  to isolate, the pallier isciant 7- reinforces the

  In this paper, various papers such as "SUDR" paper by Mosinee Paper Corporation Pulp and Parer Division, Deppartment 2 R 63, M1 Osinee, Wiscoinsin, and "NOY Ei" paper can be used. X. manufactured by Dupont Company, Delaware, or "KAPTON SH-r AND" paper manufactured by St. Paul, Minnesota. The paper may be bonded to the core using the same bonding material as the paper. which is used for bonding the steel strips to silicon, with

amorphous material in band.

  The present invention is not limited to the examples

  described above, it is, on the contrary,

  re susceptible to variations and modifications that will appear

to the man of the art.

Claims (8)

  1 Magnetic core for electrical apparatus with   characterized in that it comprises a strip of material   amorphous magnetic material wound on itself so as to form layers radially contiguous to each other and a reinforcement is a non-amorphous metal material, arranged radially VA riu t cortex the layer   more inward fortified by: ia strip of magnetic material a- morph.   2 Magnetic core according to claim 1,   characterized in that this amorphous re-algeon is a high-grade silicon steel.   3 Core - failing one of the claims   1 or 2, creed in ejue 2 nd non-cinem o er   4 bicycles magneLi quea followar 4 t Pu N de-z claims   1,2 or 3, Characterization of this type, a non-amorphous nature, and a number of replies.   sale, subject to an agent of   seals forming PL at least on the outer walls of the ncy-au for the last watertight   liquid dielectrics used 3 in the induction apparatus.   6 No magnetic diy according to claim 5,   characterized in that this agent deltarj clhêité is a varnish iso-   lant. ? Magnetic core according to claim 5, ca-   characterized in that said sealant is a fluorosilicone cone.   Magnetic core according to claim 5,   in that this coating is formed of the powder used that is electrically tactically.   9 Magnetic core according to any one of   previous vendications, characterized in that a section aur   the core is surrounded by an insulating envelope and   forcing on which is wound an electric winding.