NO120240B - - Google Patents

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Publication number
NO120240B
NO120240B NO517868A NO517868A NO120240B NO 120240 B NO120240 B NO 120240B NO 517868 A NO517868 A NO 517868A NO 517868 A NO517868 A NO 517868A NO 120240 B NO120240 B NO 120240B
Authority
NO
Norway
Prior art keywords
tin
sheet
indentation
protrusion
indentations
Prior art date
Application number
NO517868A
Other languages
Norwegian (no)
Inventor
J Schildknecht
Original Assignee
Leuenberger H
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leuenberger H filed Critical Leuenberger H
Publication of NO120240B publication Critical patent/NO120240B/no

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031Joining superposed plates by locally deforming without slitting or piercing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/245Magnetic cores made from sheets, e.g. grain-oriented
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • H01F41/0233Manufacturing of magnetic circuits made from sheets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09Magnetic cores comprising laminations characterised by being fastened by caulking

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

Fremgangsmåte for fremstilling Method of manufacture

av en blikklaminering. of a tin lamination.

Oppfinnelsen vedrører en fremgangsmåte til fremstilling The invention relates to a method for production

av en blikklaminering (blikkpakke), særlig for magnetiserbare armaturer til elektriske apparater eller maskiner. Hittil ble i slike blikkpakker blikkene som oftest holdt sammen ved hjelp av nagler. Hullene som trenges for naglene svekker imidlertid det blikktverrsnitt som er disponibelt for magnet!'luksen, og selv om naglene selv for det meste også er magnetisk ledende, får blikkpakken en nedsatt magnetisk ledeevne. Dessuten øker naglene de hvirvelstrømstap som opptrer i armaturer for vekselstrøm. Men også når en blikklaminering ikke skal benyttes som magnetiserbart armatur, betyr naglingen av blikkene en uønsket arbeidsoperasjon. Det er vel kjent å klebe blikkene sammen, særlig når det er anord^-net en papirisolasjon mellom dem. Klebingen blir imidlertid rela-tivt kostbar og papirisolasjon blir nå knapt benyttet. of a tin lamination (tin pack), especially for magnetisable fittings for electrical appliances or machines. Until now, in such tin packs, the tins were most often held together by means of rivets. The holes needed for the rivets, however, weaken the sheet metal cross-section that is available for the magnet, and even though the rivets themselves are mostly also magnetically conductive, the sheet metal pack has a reduced magnetic conductivity. In addition, the rivets increase the eddy current losses that occur in fixtures for alternating current. But also when a tin lamination is not to be used as a magnetisable fixture, the riveting of the tins means an undesirable work operation. It is well known to glue the sheets together, especially when paper insulation is arranged between them. However, the gluing becomes relatively expensive and paper insulation is now hardly used.

Det er også kjent blikkpakker, hvis enkelte blikk blir holdt sammen ved hjelp av inn- og utbuktninger, idet den konvekse side til et blikks pregete inn- og utbuktning griper inn i en tilsvarende inn- og utbuktning til et tilstøtende blikk. ' Til' fremstilling av en slik blikklaminering har man hittil gått frem på følgende måte (se USA-patentskrift 2.671.951): Man har i et an-tall blikk med samme form og størrelse preget tilsvarende inn- og utbuktninger, fortrinnsvis under samtidig utstansing av blikkene av en blikkplate eller et blikkbånd. Deretter har man lagt blikkene på hverandre i en presse, rettet dem inn og presset dem sammen, hvorved det ble bevirket et inngrep mellom de tilsvarende inn- og utbuktninger i tilstøtende blikk. There are also known sheet packs, whose individual sheets are held together by means of indentations and protrusions, the convex side of a sheet's embossed indentation and protrusion engaging in a corresponding indentation and protrusion of an adjacent sheet. 'To' the production of such a sheet lamination, one has so far proceeded in the following way (see US patent 2,671,951): A number of sheets of the same shape and size have been embossed with corresponding indentations and protrusions, preferably during simultaneous punching of the tins of a tin plate or a tin strip. The faces were then placed on top of each other in a press, aligned and pressed together, whereby an intervention was effected between the corresponding indentations and bulges in adjacent faces.

Oppfinnelsen har til hensikt å forenkle fremstillingen av blikkpakker av nevnte art og høyne sammenholdelsen mellom blikkene i pakken. Dette oppnås ifølge oppfinnelsen ved at det til preging av inn- og utbuktningene til de enkelte blikk blir benyttet et allerede preget blikk av pakken som matrise eller patrise for det etterfølgende blikk. Det er klart at det nypregete blikk henger fast til det forangående blikk som har tjent som matrise eller patrise, slik at en ytterligere sammenpressing av blikkene blir unødvendig. Det viser seg dessuten at blikkene i en slik fremstilt pakke holdes bedre sammen enn i en pakke som er fremstilt på den kjente måte. Blikkene kan først stanses og deretter preges på hverandre. Man kan imidlertid stanse blikkene og prege dem på hverandre i en arbeidsoperasjon. The purpose of the invention is to simplify the manufacture of tin packs of the aforementioned kind and to increase the consistency between the tins in the pack. According to the invention, this is achieved by embossing the indentations and protrusions of the individual sheets by using an already embossed sheet of the package as a matrix or patrice for the subsequent sheet. It is clear that the newly minted look is attached to the previous look that has served as a matrix or patrice, so that a further compression of the looks becomes unnecessary. It also turns out that the eyes in a package produced in this way are held together better than in a package produced in the known way. The glances can first be stopped and then imprinted on each other. One can, however, stop the glances and impress them on each other in a work operation.

Et utførelseseksempel av en blikkpakke fremstilt ifølge oppfinnelsen er vist sammen med enkelte varianter i de medfølgende tegninger, hvor: An exemplary embodiment of a tin package produced according to the invention is shown together with some variants in the accompanying drawings, where:

Fig. 1 viser enderiss' av en blikkpakke. Fig. 1 shows an end view of a tin pack.

Fig. 2 viser et planriss av blikkpakken i fig. 1. Fig. 2 shows a plan view of the tin package in fig. 1.

Pig. 3 viser et delsnitt etter linjen III-III i fig. 2 i større målestokk. Pig. 3 shows a partial section along the line III-III in fig. 2 on a larger scale.

Pig. 4 viser et delsnitt etter linjen IV-IV som står vinkel-rett på linjen III-III. Pig. 4 shows a partial section along the line IV-IV which is perpendicular to the line III-III.

Pig. 5 viser en variant av fig. 3. Pig. 5 shows a variant of fig. 3.

Pig. 6 viser en ytterligere variant av fig. 3. Pig. 6 shows a further variant of fig. 3.

Den i fig. 1 og 2 viste blikkpakke 1 består av tallrike E-formete blikk 2 som er like hverandre, idet det dreier seg om lett magnetiserbart jernblikk, som på overflaten er fosfatert eller lakkert på vanlig måte av hensyn til den elektriske isoler-ing. Hvert blikk oppviser innpregete inn- og utbuktninger 3, idet The one in fig. The tin pack 1 shown in 1 and 2 consists of numerous E-shaped tins 2 which are similar to each other, as it is easily magnetizable iron tin, the surface of which is phosphated or lacquered in the usual way for reasons of electrical insulation. Each look shows marked indentations and indentations 3, in that

- med unntak'av de.t .øverste blikk 2 - den konvekse side til hver o - with the exception of the top face 2 - the convex side of each o

inn- og utbuktning 3 griper inn- i 1den! konkave' side til den tilsvarende inn-,og utbuktning 3 på det tilstøtende blikk. indentation and bulging 3 engages in 1! concave' side to the corresponding indentation and protrusion 3 on the adjacent face.

Den;viste blikkpakke 1-danner sammen méd - en på" samme ;måte sammenholdt,, strek-punktert antydet blikkpakke la magnetkjernen til en drosselspole eller en transformator. ' Blikkpakkéne 1 og la er så kompakte, at den vanlige "brumming" til slike" magnetkjerner med den dobbelte vekselstrømsfrekvens er undertrykket i*meget stor grad, selv om det ikke finnes noen nagler-som øker"kjernens magnetiske motstand og hvirvelstrømstaperie. The; shown tin package 1-forms together with - a in" the same ;manner together,, line-dotted indicated tin package la the magnetic core of a choke coil or a transformer. ' The tin packages 1 and la are so compact, that the usual "humming" of such "double AC frequency magnetic cores are greatly suppressed, even though there are no rivets-which increase" the core's magnetic resistance and eddy current loss.

Blikkpakken 1 blir for eksempel fremstilt på følgende måte: Det nederste blikk 2-^ blir for det første stanset, hvor-etter inn- og utbuktningen 3 blir preget ved hjelp^åv en-matrise og en patrise. Det neste blikk 2.- > blir stanset og deretter lagt på blikket 2^, som ved den nå følgende preging av blikket 2^ tjener som matrise, mens den samme patrise blir benyttet som for blikket 2-^. Til å prege det neste blikk 2^ blir deretter blikket 2^ benyttet som matrise osv. ' The tin pack 1 is, for example, produced in the following way: The bottom tin 2-^ is first punched, after which the indentation and protrusion 3 is embossed with the help of a die and a patrice. The next sheet 2.- > is punched and then placed on sheet 2^, which in the now following embossing of sheet 2^ serves as a matrix, while the same patrice is used as for sheet 2-^. To stamp the next sheet 2^, sheet 2^ is then used as a matrix, etc.

Selvfølgelig kan man også benytte et allerede preget' blikk som patrise for et følgende blikk. ' Man kari lett bringe de enkelte blikk automatisk fra et stansested, hvor blikkene blir stanset, til et pregested, hvor pregingen skjer under benyttelse av det forangående blikk som matrise eller patrise. Man kan imidlertid også foreta stansingen og pregingen i en enkelt arbeidsoperasjon, idet det riktignok da må sørges for at underlaget for den voksende blikkpakke etter hver arbeidsoperasjon går tilbake en blikktykkelse i forhold til stanseverktøyet. Of course, you can also use an already marked look as a pattern for a following look. ' One can easily bring the individual blanks automatically from a punching location, where the blanks are punched, to an embossing location, where the embossing takes place using the previous blank as matrix or patrice. However, the punching and embossing can also be carried out in a single work operation, as it must be ensured that the substrate for the growing tin pack after each work operation goes back one tin thickness in relation to the punching tool.

Mens de i fig. 1-4 viste inn- og utbuktninger 3 har et bueformet profil i lengderetning, oppviser inn- og utbuktningen 3a ifølge fig. 5 i lengderetningen et profil som er sammensatt" While those in fig. 1-4 shown indentations 3 have an arc-shaped profile in the longitudinal direction, the indentation and protrusion 3a according to fig. 5 in the longitudinal direction a profile which is composed"

av rette deler som støter mot hverandre i vinkler, omtrent' i form av et symmetrisk trapes med åpen grunnlinje. of straight parts abutting each other at angles, roughly' in the form of a symmetrical trapezoid with an open base.

Inn- og utbuktningene 3a bevirker, som undersøkelser har vist, en enda bedre forbindelse mellom blikkene '2 enn inn-' og utbuktningene 3. Det i begge tilfeller omtrent rektangulære "omriss 4 til inn- og utbuktningen 3 (henholdsvis 3a) kan for'eksempel " være omtrent 5 x 2 mm stort og høyden 5 kan være omtrerit T,5 min. The indentations and protrusions 3a cause, as investigations have shown, an even better connection between the faces '2 than in-' and the protrusions 3. In both cases the roughly rectangular "outline 4 of the indentation and protrusion 3 (respectively 3a) can for" example " be approximately 5 x 2 mm in size and the height 5 can be approximately T.5 min.

I fig. 6 er^det vist, at en inn- og utbuktning 3b kan be-finne seg ved en kant 6 av blikket 2, slik at denne kant 6 følger inn- og utbuktningen 3b. Denne forbindelse er imidlertid noe mindre fast enn forbindelsen ifølge fig. 5. In fig. 6, it is shown that an indentation and protrusion 3b can be located at an edge 6 of the sheet 2, so that this edge 6 follows the indentation and protrusion 3b. However, this connection is somewhat less firm than the connection according to fig. 5.

Blikkpakker av den beskrevne art kan også benyttes 'for magnetkjernene til elektromagneter, for statorer og rotorer til motorer eller generatorer osv. I bestemte tilfeller er det for-delaktig å benytte blikk med forskjellig form og/eller størrelse i samme pakke, for eksempel for å oppnå ønskete magnetiske omled-ninger eller for å kunne fastgjøre pakken til andre bestanddeler i en maskin eller et apparat på hensiktsmessig måte. Tin packs of the kind described can also be used for the magnetic cores of electromagnets, for stators and rotors of motors or generators, etc. In certain cases, it is advantageous to use tin with different shapes and/or sizes in the same pack, for example to achieve the desired magnetic diversions or to be able to attach the package to other components in a machine or device in an appropriate manner.

Claims (1)

Fremgangsmåte til fremstilling av en blikklaminering (blikkpakke) hvis enkelte blikk holdes sammen ved hjelp av inn-og utbuktninger, idet stadig den konvekse side til et blikks pregete inn- og utbuktning griper inn i den konkave side til en tilsvarende inn- og utbuktning i et tilstøtende blikk, karakterisert ved at det .til preging av de enkelte blikk blir benyttet et allerede preget blikk av pakken som matrise eller patrise for det følgende blikk.Method for producing a tin lamination (tin pack) if individual tins are held together by means of indentations and protrusions, whereby the convex side of a tin's embossed indentation and protrusion engages the concave side of a corresponding indentation and protrusion in a adjacent faces, characterized in that an already embossed face of the package is used for embossing the individual faces as a matrix or patrice for the following face.
NO517868A 1967-12-29 1968-12-24 NO120240B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1831767A CH484501A (en) 1967-12-29 1967-12-29 Process for the production of a laminated core

Publications (1)

Publication Number Publication Date
NO120240B true NO120240B (en) 1970-09-21

Family

ID=4432100

Family Applications (1)

Application Number Title Priority Date Filing Date
NO517868A NO120240B (en) 1967-12-29 1968-12-24

Country Status (10)

Country Link
AT (1) AT290265B (en)
BE (1) BE725976A (en)
CH (1) CH484501A (en)
DE (1) DE1811585A1 (en)
DK (1) DK122047B (en)
FR (1) FR1596165A (en)
GB (1) GB1200279A (en)
NL (1) NL6818600A (en)
NO (1) NO120240B (en)
SE (1) SE363691B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519204A1 (en) * 1981-12-30 1983-07-01 Le Proizv Rotor for electric machine - has layers in laminar ring held together by edge welds and by projections and recesses
GB2206453B (en) * 1987-06-22 1992-01-02 Linton & Hirst Ltd Pack of laminations and forming projections and depressions
DE3883325T2 (en) * 1987-09-08 1993-12-09 Nippon Denso Co Laminated body from sheet metal.
DE3902621A1 (en) * 1989-01-30 1990-08-02 Licentia Gmbh Method for producing a laminated core stack and voltage core, for inductive electricity meters, produced according to the method
US4963849A (en) * 1989-04-28 1990-10-16 General Electric Company Compact current limiting circuit breaker
JPH07297055A (en) * 1994-04-26 1995-11-10 Matsushita Electric Ind Co Ltd Choke coil
DE9416669U1 (en) * 1994-10-17 1994-12-22 Aeg Zaehler Gmbh Core package made of laminated sheet metal laminates
DE29514508U1 (en) * 1995-09-09 1995-11-02 Vacuumschmelze Gmbh Sheet package for magnetic cores for use in inductive components with a longitudinal opening
DE19741364C2 (en) 1997-09-19 2000-05-25 Vacuumschmelze Gmbh Method and device for producing packages for magnetic cores consisting of sheet metal lamellae
US7012350B2 (en) * 2001-01-04 2006-03-14 Emerson Electric Co. Segmented stator switched reluctance machine
US20020139606A1 (en) * 2001-04-03 2002-10-03 Williams Donald J. Electric power steering system including a segmented stator switched reluctance motor
US6584813B2 (en) 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
US6744166B2 (en) 2001-01-04 2004-06-01 Emerson Electric Co. End cap assembly for a switched reluctance electric machine
US6700284B2 (en) 2001-03-26 2004-03-02 Emerson Electric Co. Fan assembly including a segmented stator switched reluctance fan motor
DE10258606A1 (en) * 2002-12-16 2004-06-24 Robert Bosch Gmbh Electric motor for electric hand power tool, has stator body with raised portions axially extending over lamella surface and clamped between radially extending housing parts in axially force-transmitting manner
DE102004012436B4 (en) * 2004-03-12 2006-04-20 Vossloh-Schwabe Deutschland Gmbh Core sheet for inductive component

Also Published As

Publication number Publication date
SE363691B (en) 1974-01-28
DE1811585A1 (en) 1969-07-17
CH484501A (en) 1970-01-15
GB1200279A (en) 1970-07-29
FR1596165A (en) 1970-06-15
BE725976A (en) 1969-05-29
NL6818600A (en) 1969-07-01
AT290265B (en) 1971-05-25
DK122047B (en) 1972-01-10

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