JPS5518026A - Method of manufacturing tightly closed electric coil and mold therefor - Google Patents

Method of manufacturing tightly closed electric coil and mold therefor

Info

Publication number
JPS5518026A
JPS5518026A JP9065178A JP9065178A JPS5518026A JP S5518026 A JPS5518026 A JP S5518026A JP 9065178 A JP9065178 A JP 9065178A JP 9065178 A JP9065178 A JP 9065178A JP S5518026 A JPS5518026 A JP S5518026A
Authority
JP
Japan
Prior art keywords
mold
coil
tightly closed
core
bobbin
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
JP9065178A
Other languages
Japanese (ja)
Other versions
JPS6048893B2 (en
Inventor
Yasotaro Tsukada
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9065178A priority Critical patent/JPS6048893B2/en
Publication of JPS5518026A publication Critical patent/JPS5518026A/en
Publication of JPS6048893B2 publication Critical patent/JPS6048893B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE: To provide the subject method comprising the steps of interposing a core in an indentation of a female mold to inject therein an insulation curing synthetic resin to mold a bobbin, accommodating therein a coil while hardening is in progress, and applying therein the synthetic resin thereby to mold the coil in a tightly closed manner.
CONSTITUTION: A core 8 is interposed in the indentation of each of cylindrical molds 1 and 1' having a section of a W-shape. Grooves 4 and 4' are formed at the lower part of the inner walls 3 of the core 8, and bobbin shaped spaces 5 are formed between said grooves and mold cores 1", an injection port 6 and a sprue 7 are provided at the head portion. A lid 9 is also provided with an injection port 6' and a sprue 7'. A resin is injected by a transfer gun 12 so as to be filled in spaces 5, and the core 8 is removed while the curing is in progress. A coil 11 is externally fitted and accommodated in the indentation 2, and the lid 9 is applied thereon, the resin being injected and a bobbin 13 being formed integrally with the coil 11. After curing, the molds are removed, and burrs are removed to complete the tightly closed coil. According to the above described procedures, continuous molding can be carried out by a single mold unit without requiring to mold beforehand a bobbin, and hence tightly closed coils can be obtained with excellent productivity.
COPYRIGHT: (C)1980,JPO&Japio
JP9065178A 1978-07-25 1978-07-25 Method of manufacturing sealed electric coils and their types Expired JPS6048893B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9065178A JPS6048893B2 (en) 1978-07-25 1978-07-25 Method of manufacturing sealed electric coils and their types

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9065178A JPS6048893B2 (en) 1978-07-25 1978-07-25 Method of manufacturing sealed electric coils and their types

Publications (2)

Publication Number Publication Date
JPS5518026A true JPS5518026A (en) 1980-02-07
JPS6048893B2 JPS6048893B2 (en) 1985-10-30

Family

ID=14004410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9065178A Expired JPS6048893B2 (en) 1978-07-25 1978-07-25 Method of manufacturing sealed electric coils and their types

Country Status (1)

Country Link
JP (1) JPS6048893B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG89293A1 (en) * 1998-09-04 2002-06-18 Murata Manufacturing Co Method of manufacturing bead inductor and apparatus for manufacturing same
JP2010118503A (en) * 2008-11-13 2010-05-27 Denso Corp Reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG89293A1 (en) * 1998-09-04 2002-06-18 Murata Manufacturing Co Method of manufacturing bead inductor and apparatus for manufacturing same
US6702562B2 (en) 1998-09-04 2004-03-09 Murata Manufacturing Co., Ltd. Apparatus for manufacturing bead inductor
JP2010118503A (en) * 2008-11-13 2010-05-27 Denso Corp Reactor

Also Published As

Publication number Publication date
JPS6048893B2 (en) 1985-10-30

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