GB1477005A - Method for producing a stator stack - Google Patents

Method for producing a stator stack

Info

Publication number
GB1477005A
GB1477005A GB2986174A GB2986174A GB1477005A GB 1477005 A GB1477005 A GB 1477005A GB 2986174 A GB2986174 A GB 2986174A GB 2986174 A GB2986174 A GB 2986174A GB 1477005 A GB1477005 A GB 1477005A
Authority
GB
United Kingdom
Prior art keywords
strip
helix
projections
slots
stack
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
GB2986174A
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to GB2986174A priority Critical patent/GB1477005A/en
Publication of GB1477005A publication Critical patent/GB1477005A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • 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)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

1477005 Core constructions NIPPON DENSO CO Ltd 5 July 1974 29861/74 Heading H2A [Also in Division B3] A method of producing a stator stack 11, Fig. 6, for an electrical machine comprises stamping out a plurality of slots 2, Fig. 4, along one edge of a steel strip 1, deforming areas of the strip to provide a plurality of projections 6 on one side 5 of the strip and indentations 8, Fig. 5, on the opposite side 7 of the strip, winding the strip on edge to form a helix to align the slots and centre the projections and indentations of adjacent coils of the helix, resistance welding the individual coils together to form a stack 11, and pressing the end faces 12, 13 of the helix to form flat, parallel ends. Each indentation 8 comprises an annular recess 9 and a blind bore 10 having a corresponding shape to the projection 6 but having a different volume. After the slots 2 are aligned to form a plurality of grooves extending parallel to the axis of the helix, electrodes 14, 15 are disposed on the projections to weld the stack together.
GB2986174A 1974-07-05 1974-07-05 Method for producing a stator stack Expired GB1477005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2986174A GB1477005A (en) 1974-07-05 1974-07-05 Method for producing a stator stack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2986174A GB1477005A (en) 1974-07-05 1974-07-05 Method for producing a stator stack

Publications (1)

Publication Number Publication Date
GB1477005A true GB1477005A (en) 1977-06-22

Family

ID=10298392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2986174A Expired GB1477005A (en) 1974-07-05 1974-07-05 Method for producing a stator stack

Country Status (1)

Country Link
GB (1) GB1477005A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306631A2 (en) * 1987-09-08 1989-03-15 Nippondenso Co., Ltd. Metal plate laminated body
EP1248347A1 (en) * 2000-08-29 2002-10-09 Mitsubishi Denki Kabushiki Kaisha Stacked stator core and production method therefor and rotary motor and production method therefor
JP2003153475A (en) * 2001-11-12 2003-05-23 Mitsubishi Electric Corp Laminated stator core, its manufacturing method and method for manufacturing electric rotating machine
EP1504896A1 (en) * 2001-12-25 2005-02-09 Institute of Technology Precision Electrical Discharge Work's Method and system for producing laminate
AU2002325444B2 (en) * 2002-10-10 2005-08-25 Lg Electronics Inc. Method for manufacturing core of motor for washing machines
US7262540B2 (en) * 2004-02-26 2007-08-28 Lg Electronics Inc. Stator of outer rotor type motor for drum type washing machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306631A2 (en) * 1987-09-08 1989-03-15 Nippondenso Co., Ltd. Metal plate laminated body
EP0306631A3 (en) * 1987-09-08 1989-11-15 Nippondenso Co., Ltd. Metal plate laminated body
JP3730218B2 (en) * 2000-08-29 2005-12-21 三菱電機株式会社 Stacked stator core and manufacturing method thereof, and rotary motor and manufacturing method thereof
EP1248347A4 (en) * 2000-08-29 2003-07-09 Mitsubishi Electric Corp Stacked stator core and production method therefor and rotary motor and production method therefor
US6759785B2 (en) 2000-08-29 2004-07-06 Mitsubishi Denki Kabushiki Kaisha Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof
US6784587B2 (en) 2000-08-29 2004-08-31 Mitsubishi Denki Kabushiki Kaisha Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof
EP1248347A1 (en) * 2000-08-29 2002-10-09 Mitsubishi Denki Kabushiki Kaisha Stacked stator core and production method therefor and rotary motor and production method therefor
US7185418B2 (en) 2000-08-29 2007-03-06 Mitsubishi Denki Kabushiki Kaisha Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof
JP2003153475A (en) * 2001-11-12 2003-05-23 Mitsubishi Electric Corp Laminated stator core, its manufacturing method and method for manufacturing electric rotating machine
EP1504896A1 (en) * 2001-12-25 2005-02-09 Institute of Technology Precision Electrical Discharge Work's Method and system for producing laminate
EP1504896A4 (en) * 2001-12-25 2006-08-02 Inst Tech Prec Elect Discharge Method and system for producing laminate
AU2002325444B2 (en) * 2002-10-10 2005-08-25 Lg Electronics Inc. Method for manufacturing core of motor for washing machines
US6993822B2 (en) 2002-10-10 2006-02-07 Lg Electronics Inc. Method for manufacturing stator of motor for washing machines
US7262540B2 (en) * 2004-02-26 2007-08-28 Lg Electronics Inc. Stator of outer rotor type motor for drum type washing machine
US7342344B2 (en) 2004-02-26 2008-03-11 Lg Electronics Inc. Stator of outer rotor type motor for drum type washing machine

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee