JPS5556799A - Manufacture of voice coil - Google Patents

Manufacture of voice coil

Info

Publication number
JPS5556799A
JPS5556799A JP13018178A JP13018178A JPS5556799A JP S5556799 A JPS5556799 A JP S5556799A JP 13018178 A JP13018178 A JP 13018178A JP 13018178 A JP13018178 A JP 13018178A JP S5556799 A JPS5556799 A JP S5556799A
Authority
JP
Japan
Prior art keywords
substrate
resist
voice coil
exposed
coated
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.)
Granted
Application number
JP13018178A
Other languages
Japanese (ja)
Other versions
JPS6115640B2 (en
Inventor
Yasushi Miyoshi
Yasuhiro Ishii
Shintaro Hirose
Osamu Oota
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP13018178A priority Critical patent/JPS5556799A/en
Publication of JPS5556799A publication Critical patent/JPS5556799A/en
Publication of JPS6115640B2 publication Critical patent/JPS6115640B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil
    • H04R9/046Construction

Abstract

PURPOSE:To increase greatly the volume content factor at the coil part and thus to enhance the acoustic conversion efficiency of the speaker by cutting the thickness of the voice coil down to half or less in case the impedance of the voice coil is set identical. CONSTITUTION:Photo resist 2 functioning as the photosensitive material is coated on cylindrical bobbin substrate 1 which is formed with Al of a fixed thickness. Then the light is exposed to substrate 1 coated with resist 2 in the spiral form and with a fixed space in the longer direction of the substrate, thus forming exposure photo resist 3. Then exposed substrate 1 is soaked into the developer for the photo resist in order to remove resist 2 at the end area of resist 3. After this, resist 2 is dissolved away, and the anode oxidation is applied to exposed substrate 1. Then Al layer 4 reaching up to the inner circumference surface of the Al of substrate 1 is formed into a spiral form. And the Al of substrate 1 is divided into round forms to from coil part 5, and then resist 2 remaining on the outer circumference surface of substrate 1 is removed.
JP13018178A 1978-10-20 1978-10-20 Manufacture of voice coil Granted JPS5556799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13018178A JPS5556799A (en) 1978-10-20 1978-10-20 Manufacture of voice coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13018178A JPS5556799A (en) 1978-10-20 1978-10-20 Manufacture of voice coil

Publications (2)

Publication Number Publication Date
JPS5556799A true JPS5556799A (en) 1980-04-25
JPS6115640B2 JPS6115640B2 (en) 1986-04-25

Family

ID=15027986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13018178A Granted JPS5556799A (en) 1978-10-20 1978-10-20 Manufacture of voice coil

Country Status (1)

Country Link
JP (1) JPS5556799A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748896A (en) * 1980-09-05 1982-03-20 Pioneer Electronic Corp Entire drive type speaker diaphragm plate and its manufacture
JP2009247191A (en) * 2008-04-01 2009-10-22 Namiki Precision Jewel Co Ltd Cylindrical coil and cylindrical micromotor and method of manufacturing of cylindrical coil
JP2012142457A (en) * 2010-12-29 2012-07-26 Ryutaro Mori Winding apparatus and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748896A (en) * 1980-09-05 1982-03-20 Pioneer Electronic Corp Entire drive type speaker diaphragm plate and its manufacture
JPS6232680B2 (en) * 1980-09-05 1987-07-16 Pioneer Electronic Corp
JP2009247191A (en) * 2008-04-01 2009-10-22 Namiki Precision Jewel Co Ltd Cylindrical coil and cylindrical micromotor and method of manufacturing of cylindrical coil
JP2012142457A (en) * 2010-12-29 2012-07-26 Ryutaro Mori Winding apparatus and manufacturing method thereof

Also Published As

Publication number Publication date
JPS6115640B2 (en) 1986-04-25

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