Title:
INDUCTOR
Document Type and Number:
Japanese Patent JP2017034001
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an inductor in which a winding part of a bobbin can be improved in strength and reduced in outer shape size, and production efficiency can be improved.SOLUTION: A coil 1 as an inductor comprises: a toroidal core 4 formed of a magnetic material; and a bobbin 2 having a housing part 6 formed as a coating layer sticking on an outer surface of the toroidal core 4 and wound with winding and an arm part 10 extending outward from an outer peripheral surface 28 thereof and having a fixation hole 12, that a fastening member penetrates, formed in a tip part. The bobbin 2 is formed by insert molding integrally with the toroidal core 4 and a collar 14, and has no gap formed between the toroidal core 4 and housing part 6, so while the strength is improved, the outer shape size can be made smaller. Further, only one metal mold is used to mold the bobbin 2 and another assembling operation is unnecessary, which contributes to improvement in production efficiency.SELECTED DRAWING: Figure 2
Inventors:
NINOMIYA YUKIKAZU
ARIMA HIROSHI
YAMADA SHOJI
ARIMA HIROSHI
YAMADA SHOJI
Application Number:
JP2015149950A
Publication Date:
February 09, 2017
Filing Date:
July 29, 2015
Export Citation:
Assignee:
TAMURA SEISAKUSHO KK
International Classes:
H01F17/06; H01F27/06
Domestic Patent References:
| JP2012089791A | 2012-05-10 | |||
| JPH03129713A | 1991-06-03 | |||
| JPH1064630A | 1998-03-06 | |||
| JPH07208312A | 1995-08-08 | |||
| JP2015070140A | 2015-04-13 | |||
| JP2013179184A | 2013-09-09 | |||
| JP2015050235A | 2015-03-16 | |||
| JP2007096249A | 2007-04-12 |
Foreign References:
| US5241941A | 1993-09-07 | |||
| CN204117762U | 2015-01-21 |
Attorney, Agent or Firm:
Takahiro Yamazaki