Title:
BOBBIN FOR COIL DEVICE, COIL DEVICE, AND ASSEMBLY METHOD FOR COIL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/047739
Kind Code:
A1
Abstract:
A bobbin for a coil device according to the present invention is for use in a coil device formed by winding a coil around the outer circumference of a magnetic core part of a magnetic core. The bobbin comprises a cylindrical bobbin (a second bobbin) 20 that has: an inside bobbin body 20A that comprises a cylindrical insulating member into which the magnetic core part of the magnetic core is inserted and protruding intermittent wall parts 21 that extend linearly over the outer circumferential surface of the cylindrical insulating member in the circumferential direction of the outer circumferential surface; a pipe (a second pipe) 41 that, guided by the intermittent wall parts 21, is wound onto the outer circumferential surface of the cylindrical insulating member; and an insulating outside bobbin body 20B that overmolds and thereby sandwiches the pipe (the second pipe) 41 with the inside bobbin body 20A.
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| JP2012178384 | COIL BOBBIN, COIL MANUFACTURING METHOD AND COIL |
Inventors:
YAMAGUCHI TAKAYUKI (JP)
Application Number:
PCT/JP2022/032562
Publication Date:
March 07, 2024
Filing Date:
August 30, 2022
Export Citation:
Assignee:
SUMIDA CORP (JP)
International Classes:
H01F5/02
Domestic Patent References:
| WO2014103298A1 | 2014-07-03 |
Foreign References:
| JP2020021779A | 2020-02-06 |
Attorney, Agent or Firm:
KAWANO Hiroshi et al. (JP)
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