Title:
TRANSFORMER
Document Type and Number:
Japanese Patent JP2022141446
Kind Code:
A
Abstract:
To provide a versatile transformer capable of freely adjusting leakage inductance while suppressing volume change.SOLUTION: A transformer 1 includes a first bobbin 10 having a first cylindrical portion 11, a first winding 20 wound around the first cylindrical portion 11, a second bobbin 30 having a second cylindrical portion 31 and assembled to the first bobbin 10 such that the second cylindrical portion 31 overlaps the first cylindrical portion 11 in the radial direction of the first cylindrical portion 11, a second winding 40 wound around the second cylindrical portion 31, and a core 2 inserted through the first and second cylindrical portions 11 and 31, the first bobbin 10 includes a central collar portion 12c that divides the first cylindrical portion 11 into an overlapping portion 111 radially overlapping the second cylindrical portion 31 and a non-overlapping portion 112 not radially overlapping the second cylindrical portion 31 in the axial direction. The first bobbin 10 is configured such that the first winding 20 can be wound such that the thickness of the first cylindrical portion 11 in the radial direction increases in the non-overlapping portion 112 rather than the overlapping portion 111 in the first cylindrical portion 11.SELECTED DRAWING: Figure 3
Inventors:
SAKUMA SADAKATSU
SATO KEISUKE
HARIO MAKOTO
SATO KEISUKE
HARIO MAKOTO
Application Number:
JP2021041760A
Publication Date:
September 29, 2022
Filing Date:
March 15, 2021
Export Citation:
Assignee:
SHINDENGEN ELECTRIC MFG
International Classes:
H01F30/10; H01F5/02; H01F27/30; H01F30/12; H01F41/12
Attorney, Agent or Firm:
Sumio Tanai
Yasushi Matsunuma
Toshio Komuro
Yasushi Matsunuma
Toshio Komuro
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