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GB1094069A - Improvements in laminated magnetic cores - Google Patents

Improvements in laminated magnetic cores

Info

Publication number
GB1094069A
GB1094069A GB51409/64A GB5140964A GB1094069A GB 1094069 A GB1094069 A GB 1094069A GB 51409/64 A GB51409/64 A GB 51409/64A GB 5140964 A GB5140964 A GB 5140964A GB 1094069 A GB1094069 A GB 1094069A
Authority
GB
United Kingdom
Prior art keywords
lamination
spacer
laminations
spacers
transformers
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
GB51409/64A
Inventor
Leslie Jump
John Charles Spencer
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB51409/64A priority Critical patent/GB1094069A/en
Publication of GB1094069A publication Critical patent/GB1094069A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

1,094,069. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 4, 1966 [Dec. 17, 1964], No. 51409/64. Heading H1T. The adjacent groups of laminations of a laminated core (e.g. for transformers and reactors &c.) are separated, for cooling purposes, by a plurality of electrically insulating spacers, each attached to one or other of the facing laminations of two adjacent groups by at least one tongue formed from part of the lamination. The spacer 5 (Fig. 2) of plastics material (e.g. epoxy resin or reinforced fibre glass) is provided with a square aperture 8 whose cross-section is abruptly reduced to provide a surface 9 which is substantially parallel to the faces 6, 7 of the spacer and on to which the tongue of a lamination is hooked. Diagonal grooves 10 are provided on one face 6 to allow escape of air trapped between adjacent laminations in the opening 8. The spacers are preferably attached to one lamination (11) (Fig. 5, not shown), by piercing the lamination with a tool (12) which forms four triangular tongues and bends them out of the plane of the lamination into the opening 8 of the spacer to hook them on to the surface 9. A multiheaded tool may be used to secure several spacers to the same lamination simultaneously.
GB51409/64A 1964-12-17 1964-12-17 Improvements in laminated magnetic cores Expired GB1094069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB51409/64A GB1094069A (en) 1964-12-17 1964-12-17 Improvements in laminated magnetic cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51409/64A GB1094069A (en) 1964-12-17 1964-12-17 Improvements in laminated magnetic cores

Publications (1)

Publication Number Publication Date
GB1094069A true GB1094069A (en) 1967-12-06

Family

ID=10459900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51409/64A Expired GB1094069A (en) 1964-12-17 1964-12-17 Improvements in laminated magnetic cores

Country Status (1)

Country Link
GB (1) GB1094069A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133286A3 (en) * 2009-05-16 2011-02-24 Abb Technology Ag Transformer core
EP2402962A1 (en) * 2010-06-30 2012-01-04 Vetco Gray Controls Limited Transformer
JP2015535657A (en) * 2012-11-13 2015-12-14 レイセオン カンパニー Apparatus and method for thermal management of magnetic apparatus
EP3301694A1 (en) * 2016-09-29 2018-04-04 Siemens Aktiengesellschaft Cooling of inductive components

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133286A3 (en) * 2009-05-16 2011-02-24 Abb Technology Ag Transformer core
CN102428525A (en) * 2009-05-16 2012-04-25 Abb技术有限公司 Transformer core
EP2402962A1 (en) * 2010-06-30 2012-01-04 Vetco Gray Controls Limited Transformer
CN102368418A (en) * 2010-06-30 2012-03-07 韦特柯格雷控制系统有限公司 Transformers
EP2402963A3 (en) * 2010-06-30 2015-07-29 GE Oil & Gas UK Limited Transformers
JP2015535657A (en) * 2012-11-13 2015-12-14 レイセオン カンパニー Apparatus and method for thermal management of magnetic apparatus
EP3301694A1 (en) * 2016-09-29 2018-04-04 Siemens Aktiengesellschaft Cooling of inductive components

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