GB923296A - Improvements relating to magnetic structures - Google Patents

Improvements relating to magnetic structures

Info

Publication number
GB923296A
GB923296A GB4357660A GB4357660A GB923296A GB 923296 A GB923296 A GB 923296A GB 4357660 A GB4357660 A GB 4357660A GB 4357660 A GB4357660 A GB 4357660A GB 923296 A GB923296 A GB 923296A
Authority
GB
United Kingdom
Prior art keywords
resin
coating
fusible
temperature range
magnetic
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
GB4357660A
Inventor
Ronald Snadow
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 GB4357660A priority Critical patent/GB923296A/en
Publication of GB923296A publication Critical patent/GB923296A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H02K3/487—Slot-closing devices
    • H02K3/493—Slot-closing devices magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

923,296. Securing coils for dynamo electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 14, 1961 [Dec. 19, 1960], No. 43576/60. Class 35. A method of forming a magnetic structure comprises applying to each of a plurality of elements of magnetic material a first coating of resin which is infusible within a certain temperature range, applying a second coating of resin which is fusible within that temperature range and then applying heat and pressure to mould the structure, the moulding temperature being within the stated temperature range. A magnetic slot wedge, Fig. 1, is formed from a number of iron wires 1 coated with hardened resin, to which another coating of fusible bonding resin 2 is added such that they may be moulded together under heat and pressure without fusing the first coating. The magnetic structure thus has a high proportion of insulated magnetic material to minimize eddy currents. To add mechanical strength to the wedge an outer casing 3 of woven glass cloth treated with epoxy resin is added. The first coating may be polyvinyl resin mixed with phenol aldehyde and heat-treated to produce a film around the element, the bonding resin may be the same mixture but not heattreated to the same extent so that it remains fusible.
GB4357660A 1960-12-19 1960-12-19 Improvements relating to magnetic structures Expired GB923296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4357660A GB923296A (en) 1960-12-19 1960-12-19 Improvements relating to magnetic structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4357660A GB923296A (en) 1960-12-19 1960-12-19 Improvements relating to magnetic structures

Publications (1)

Publication Number Publication Date
GB923296A true GB923296A (en) 1963-04-10

Family

ID=10429369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4357660A Expired GB923296A (en) 1960-12-19 1960-12-19 Improvements relating to magnetic structures

Country Status (1)

Country Link
GB (1) GB923296A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615820B (en) * 2009-05-20 2012-07-11 衣广津 Rope-type magnetic slot wedge
CN112885594A (en) * 2021-02-20 2021-06-01 浙江博菲电气股份有限公司 Magnetic strip material prepared from magnetic conduction particles and preparation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615820B (en) * 2009-05-20 2012-07-11 衣广津 Rope-type magnetic slot wedge
CN112885594A (en) * 2021-02-20 2021-06-01 浙江博菲电气股份有限公司 Magnetic strip material prepared from magnetic conduction particles and preparation method

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