Title:
TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2023/007857
Kind Code:
A1
Abstract:
A central part (11) has a hollow part (11a) that extends in a forward/backward direction. A conductive wire (12) is wound about the central part (11). A first core and a second core are formed of a material including a magnetic substance. The first core has: a first inner portion (131a) that extends from one end of the central part (11) in the forward/backward direction into the hollow part (11a); and a first outer portion (131b) that is opposed to the conductive wire (12) at least from the upward direction and from a left-right direction. The second core has: a second inner portion (132a) that extends from the other end of the central part (11) in the forward/backward direction into the hollow part (11a); and a second outer portion (132b) that is opposed to the conductive wire (12) at least from the upward direction and from the left-right direction. A tip end of the first inner portion (131a) and a tip end of the second inner portion (132a) are opposed to each other in the forward/backward direction. The diameter of the tip end of the first inner portion (131a) is different from the diameter of the tip end of the second inner portion (132a).
Inventors:
NISHIYAMA MUTSUO (JP)
DAIKYUJI ARATA (JP)
DAIKYUJI ARATA (JP)
Application Number:
PCT/JP2022/015114
Publication Date:
February 02, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
MITSUMI ELECTRIC CO LTD (JP)
International Classes:
H01F17/04; H01F27/28; H01F27/36; H01F30/10; H05K9/00
Foreign References:
| JP2016031978A | 2016-03-07 | |||
| JPH09293616A | 1997-11-11 | |||
| JPH07263236A | 1995-10-13 | |||
| JPH11220237A | 1999-08-10 | |||
| JP2018117108A | 2018-07-26 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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