GB1200279A - A method of forming a stack of laminations - Google Patents

A method of forming a stack of laminations

Info

Publication number
GB1200279A
GB1200279A GB5964068A GB5964068A GB1200279A GB 1200279 A GB1200279 A GB 1200279A GB 5964068 A GB5964068 A GB 5964068A GB 5964068 A GB5964068 A GB 5964068A GB 1200279 A GB1200279 A GB 1200279A
Authority
GB
United Kingdom
Prior art keywords
sheet
laminations
indentation
lamination
die
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5964068A
Inventor
Hans Leuenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1200279A publication Critical patent/GB1200279A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application 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
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus 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
    • H01F41/02—Apparatus 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking

Landscapes

  • 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)

Abstract

1,200,279. Laminating metal sheets; jointing; shearing. H. LEUENBERGER. 16 Dec., 1968 [29 Dec., 1967], No. 59640/68. Headings B3A, B3J, B3V and B3W. A method of laminating sheets comprises laying a plain sheet on an underlying sheet 2 having at least one indentation 3 formed therein and using the indentation as a die to form a further indentation in the plane sheet, which further indentation mates with the indentation in the underlying sheet to connect the sheets together. The laminations are of iron and their surfaces are electrically insulated, the stacks of laminations forming magnetic cores for choke coils or transformers. The bottom sheet is punched out initially and the indentations are stamped by a male and female die. The second lamination is punched out and placed on the bottom lamination, which acts as a female die for the second lamination, the original male die being used again. The process is repeated until the stack comprises the required number of laminations. Alternatively the punching and stamping operations may be performed simultaneously. The indentations are alternatively in the shape of a symmetrical trapezium with an open base, Fig. 5 (not shown), and they may be formed in the sheet edges. The stacks of laminations may also be used for stators and rotors of dynamo-electric machines.
GB5964068A 1967-12-29 1968-12-16 A method of forming a stack of laminations Expired GB1200279A (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
GB1200279A true GB1200279A (en) 1970-07-29

Family

ID=4432100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5964068A Expired GB1200279A (en) 1967-12-29 1968-12-16 A method of forming a stack of laminations

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)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2127078A1 (en) * 1994-10-17 1999-04-01 Aeg Zahler Gmbh Stackable wafer level packages.
EP1202449A1 (en) * 1994-04-26 2002-05-02 Matsushita Electric Industrial Co., Ltd. Choke coil
US6584813B2 (en) 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
US6700284B2 (en) 2001-03-26 2004-03-02 Emerson Electric Co. Fan assembly including a segmented stator switched reluctance fan motor
US6744166B2 (en) 2001-01-04 2004-06-01 Emerson Electric Co. End cap assembly for a switched reluctance electric machine
GB2399232A (en) * 2002-12-16 2004-09-08 Bosch Gmbh Robert Securing stator to housing in an electric machine

Families Citing this family (10)

* 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
EP0306631B1 (en) * 1987-09-08 1993-08-18 Nippondenso Co., Ltd. Metal plate laminated body
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
DE29514508U1 (en) * 1995-09-09 1995-11-02 Vacuumschmelze Gmbh, 63450 Hanau 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
US20020139606A1 (en) * 2001-04-03 2002-10-03 Williams Donald J. Electric power steering system including a segmented stator switched reluctance motor
US7012350B2 (en) * 2001-01-04 2006-03-14 Emerson Electric Co. Segmented stator switched reluctance machine
DE102004012436B4 (en) * 2004-03-12 2006-04-20 Vossloh-Schwabe Deutschland Gmbh Core sheet for inductive component

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1202449A1 (en) * 1994-04-26 2002-05-02 Matsushita Electric Industrial Co., Ltd. Choke coil
ES2127078A1 (en) * 1994-10-17 1999-04-01 Aeg Zahler Gmbh Stackable wafer level packages.
US6744166B2 (en) 2001-01-04 2004-06-01 Emerson Electric Co. End cap assembly for a switched reluctance electric machine
US6584813B2 (en) 2001-03-26 2003-07-01 Emerson Electric Co. Washing machine including a segmented stator switched reluctance motor
US6700284B2 (en) 2001-03-26 2004-03-02 Emerson Electric Co. Fan assembly including a segmented stator switched reluctance fan motor
GB2399232A (en) * 2002-12-16 2004-09-08 Bosch Gmbh Robert Securing stator to housing in an electric machine
GB2399232B (en) * 2002-12-16 2005-04-06 Bosch Gmbh Robert Electric machine
US6911760B2 (en) 2002-12-16 2005-06-28 Robert Bosch Gmbh Electrical machine

Also Published As

Publication number Publication date
DE1811585A1 (en) 1969-07-17
FR1596165A (en) 1970-06-15
AT290265B (en) 1971-05-25
BE725976A (en) 1969-05-29
DK122047B (en) 1972-01-10
NO120240B (en) 1970-09-21
NL6818600A (en) 1969-07-01
SE363691B (en) 1974-01-28
CH484501A (en) 1970-01-15

Similar Documents

Publication Publication Date Title
GB1200279A (en) A method of forming a stack of laminations
MY145335A (en) Laminated iron core, method and die machine for manufacturing the same
ES8102428A1 (en) Laminated salient field pole piece for dynamoelectric machines
US4547721A (en) Transformer structure
DE3374743D1 (en) Method of manufacturing a stack of sheets, especially for the armatures of electrical machines and apparatuses
US3461758A (en) Method of making scrapless laminations for producing a plurality of units
JP4472386B2 (en) Manufacturing method of laminated iron core
GB1200252A (en) Method of manufacturing a stator for a dynamo-electric machine
KR20180092575A (en) Plate coil and manufacture method thereof
SE340653B (en)
US1297161A (en) Transformer.
US3316621A (en) Method of manufacturing a shell type transformer core for ballast structure
US3778897A (en) Method of producing magnetic core parts
JPS6251206A (en) Manufacture of laminated iron core
GB1416356A (en) Electrical choke and means and method for manufacturing same
JPS5788858A (en) Method of laminating stator core
US3071744A (en) Electromagnetic core construction
KR101734213B1 (en) Manufacturing device for stator core of motor of vehicle
US3152498A (en) Cores
US3023385A (en) Transformer core construction
JPH0744598U (en) Motor laminated core
JPH03221221A (en) Punched plate progressive press die for iron core of rotary electric machinery
JPS6130253Y2 (en)
SU826508A1 (en) Method of manufacturing open magnetic core of electric machine
FR2435149A1 (en) Dynamoelectric machine laminated core mfg. appts. - punches projection in sheet which is then blanked out over blanked sheet to form interlocking structure

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees