IE41086B1 - A method and an apparatus for producing compact electric coils - Google Patents

A method and an apparatus for producing compact electric coils

Info

Publication number
IE41086B1
IE41086B1 IE1294/75A IE129475A IE41086B1 IE 41086 B1 IE41086 B1 IE 41086B1 IE 1294/75 A IE1294/75 A IE 1294/75A IE 129475 A IE129475 A IE 129475A IE 41086 B1 IE41086 B1 IE 41086B1
Authority
IE
Ireland
Prior art keywords
coil
mandrel
compact electric
bonding material
round wire
Prior art date
Application number
IE1294/75A
Other versions
IE41086L (en
Original Assignee
Scan Speak As
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 Scan Speak As filed Critical Scan Speak As
Publication of IE41086L publication Critical patent/IE41086L/en
Publication of IE41086B1 publication Critical patent/IE41086B1/en

Links

Classifications

    • 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
    • H01F41/04—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 for manufacturing coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulating Of Coils (AREA)

Abstract

A method of producing a compact electric coil such as a voice coil for loudspeakers, whereby a coil member is wound of ordinary round wire having a coating of a thermoplastic or thermosetting bonding material, whereafter the coil member mounted on a mandrel is heated together with the mandrel and thereafter cooled from its outside so as to crimp around the mandrel while this is still warm and expanded. Hereby the round wire will be forced inwardly with high force so as to get cross sectionally deformed to fill out the available space to a very large degree, and the bonding material sets so as to hold the coil in its compacted shape whereby a coil of high rigidity and heat conductivity is produced. The coil is easily retractable from the mandrel upon further cooling of the latter. [CA1045796A]
IE1294/75A 1974-06-13 1975-06-09 A method and an apparatus for producing compact electric coils IE41086B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26221/74A GB1514458A (en) 1974-06-13 1974-06-13 Method and an apparatus for producing compact electric coils

Publications (2)

Publication Number Publication Date
IE41086L IE41086L (en) 1975-12-13
IE41086B1 true IE41086B1 (en) 1979-10-10

Family

ID=10240241

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1294/75A IE41086B1 (en) 1974-06-13 1975-06-09 A method and an apparatus for producing compact electric coils

Country Status (17)

Country Link
JP (1) JPS5133618A (en)
AT (1) AT344267B (en)
AU (1) AU8202475A (en)
BE (1) BE830195A (en)
CA (1) CA1045796A (en)
CH (1) CH607269A5 (en)
DE (1) DE2525466A1 (en)
DK (1) DK148571C (en)
ES (1) ES438775A1 (en)
FI (1) FI751763A (en)
FR (1) FR2275008A1 (en)
GB (1) GB1514458A (en)
IE (1) IE41086B1 (en)
IT (1) IT1038952B (en)
NL (1) NL7506928A (en)
NO (1) NO141106C (en)
SE (1) SE408504B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129327U (en) * 1977-03-18 1978-10-14
JPS53142603A (en) * 1977-05-18 1978-12-12 Matsushita Electric Works Ltd Rotor coil-tube coreless-motor
JPS60176555A (en) * 1984-02-23 1985-09-10 Ueno Seiyaku Kk Preservation of chinese noodle
DE102012007232B4 (en) * 2012-04-07 2014-03-13 Susanne Weller Method for producing rotating electrical machines

Also Published As

Publication number Publication date
ATA444975A (en) 1977-11-15
DK148571C (en) 1985-12-30
AT344267B (en) 1978-07-10
SE408504B (en) 1979-06-11
NO752051L (en) 1975-12-16
DE2525466A1 (en) 1976-01-02
IT1038952B (en) 1979-11-30
SE7506771L (en) 1975-12-15
FI751763A (en) 1975-12-14
DK148571B (en) 1985-08-05
FR2275008A1 (en) 1976-01-09
NL7506928A (en) 1975-12-16
GB1514458A (en) 1978-06-14
ES438775A1 (en) 1977-03-16
JPS5133618A (en) 1976-03-22
NO141106C (en) 1980-01-09
IE41086L (en) 1975-12-13
CA1045796A (en) 1979-01-09
CH607269A5 (en) 1978-11-30
BE830195A (en) 1975-10-01
NO141106B (en) 1979-10-01
AU8202475A (en) 1976-12-16
DK259275A (en) 1975-12-14

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