JPS5553997A - Manufacture of voice coil - Google Patents

Manufacture of voice coil

Info

Publication number
JPS5553997A
JPS5553997A JP12754078A JP12754078A JPS5553997A JP S5553997 A JPS5553997 A JP S5553997A JP 12754078 A JP12754078 A JP 12754078A JP 12754078 A JP12754078 A JP 12754078A JP S5553997 A JPS5553997 A JP S5553997A
Authority
JP
Japan
Prior art keywords
pipe
bobbin
manufacture
winding
voice coil
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.)
Pending
Application number
JP12754078A
Other languages
Japanese (ja)
Inventor
Akito Yamaguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12754078A priority Critical patent/JPS5553997A/en
Publication of JPS5553997A publication Critical patent/JPS5553997A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Insulating Of Coils (AREA)

Abstract

PURPOSE:To avoid the variation of the characteristics as well as occurrence of the disconnection or the like by applying the pressure from the inside of the coil bobbin due to the heat expansion of the heating tool used for manufacture of the voice coil and thus increasing the adhesive force between the coil bobbin and the winding. CONSTITUTION:The heating tool used for manufacture of the voice coil is made of cylindrical metal pipe 7 of the metal like aluminum or the like and resin pipe featuring a large heat expansion coefficient and formed at the outer circumference of pipe 7. Hooking flange 6 is provided at one end of pipe 7, and play slit 9 is formed in the axial direction at part of the circumference of pipe 10 along with positioning flange 8 formed at one end. Then coil bobbin 4 containing winding 3 is fitted to tool 5 featuring such constitution as mentioned above, thus performing the positioning via flage 8. After this tool 5 is heated close to the prescribed temperature to expand pipe 10 by the heat, thus applying the pressure from the inside of bobbin 4. As a result, the adhesive force can be increased between bobbin 4 and winding 3, thus avoiding the characteristic variation and the occurrence of the disconnection and the like.
JP12754078A 1978-10-16 1978-10-16 Manufacture of voice coil Pending JPS5553997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12754078A JPS5553997A (en) 1978-10-16 1978-10-16 Manufacture of voice coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12754078A JPS5553997A (en) 1978-10-16 1978-10-16 Manufacture of voice coil

Publications (1)

Publication Number Publication Date
JPS5553997A true JPS5553997A (en) 1980-04-19

Family

ID=14962530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12754078A Pending JPS5553997A (en) 1978-10-16 1978-10-16 Manufacture of voice coil

Country Status (1)

Country Link
JP (1) JPS5553997A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154799A (en) * 1984-08-27 1986-03-19 Pioneer Electronic Corp Manufacture of voice coil
JP2007235552A (en) * 2006-03-01 2007-09-13 Pioneer Electronic Corp Speaker, diaphragm for dome speaker, and method of manufacturing diaphragm for dome speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154799A (en) * 1984-08-27 1986-03-19 Pioneer Electronic Corp Manufacture of voice coil
JP2007235552A (en) * 2006-03-01 2007-09-13 Pioneer Electronic Corp Speaker, diaphragm for dome speaker, and method of manufacturing diaphragm for dome speaker

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