Title:
LEAKAGE INDUCTANCE ADJUSTMENT TRANSFORMER
Document Type and Number:
Japanese Patent JP2020120014
Kind Code:
A
Abstract:
To provide a transformer capable of adjusting leakage inductance easily.SOLUTION: A transformer includes a primary winding 14, a secondary winding 15, a main magnetic core 11 through which main magnetic flux, linking with the primary winding 14 and the secondary winding 15, passes, an auxiliary magnetic core 13 placed between the primary winding 14 and the secondary winding 15 and through which leakage flux passes, a movable magnetic core 12 movable for the main magnetic core 11 and the auxiliary magnetic core 13, and through which the main magnetic flux and/or the leakage flux passes, and a spacer 16 having a magnetic permeability lower than those of the main magnetic core 11, the auxiliary magnetic core 13 and the movable magnetic core 12, and placed between the auxiliary magnetic core 13 and the main magnetic core 11 and/or the movable magnetic core 12. The movable magnetic core 12 is in contact with the auxiliary magnetic core 13 or the spacer 16, and by moving the movable magnetic core 12, magnetic permeability of the auxiliary magnetic core 13 can be changed by adjusting a stress applied on a contact part with the auxiliary magnetic core 13 and the movable magnetic core 12 or the spacer 16, and thereby the leakage inductance can be adjusted easily.SELECTED DRAWING: Figure 5
Inventors:
MIZOGAMI MASAHITO
Application Number:
JP2019010395A
Publication Date:
August 06, 2020
Filing Date:
January 24, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
H01F29/10; H01F21/08; H01F38/08; H02M3/28
Domestic Patent References:
| JPS4631069Y1 | ||||
| JP2004186451A | 2004-07-02 | |||
| JPH0381616U | 1991-08-21 | |||
| JPH08288143A | 1996-11-01 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo
Osamu Nitta
Kazuki Kuribayashi
Osamu Nitta
Kazuki Kuribayashi