INDUCTOR AND DC/DC CONVERTER INCLUDING THE SAME

• Main Authors: SEKI AKIHIKO, OMURA TAKUMI, AIBA HARUKA, KURODA TOMOFUMI
• Format: Patent
• Language: English; Japanese
• Published: 04.10.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide an inductor which is further reduced in coupling between coil conductors.SOLUTION: An inductor 10 includes: a magnetic core 100 formed by laminating a plurality of soft magnetic thin bands 131 in a Z direction; and first and second coil conductors 110, 120 respectively inserted into first and second penetration holes 101, 102 that penetrate through the magnetic core 100 in the Z direction and that are arranged in an X direction. Each of the soft magnetic thin bands 131 is divided into a plurality of small pieces P by gaps G. When a1 represents an average interval of the gaps G in the X direction and a2 represents an average interval of the gaps G in a Y direction, a1 is smaller than a2. Therefore, the coupling coefficient between the first coil conductor 110 and the second coil conductor 120 is lowered.SELECTED DRAWING: Figure 3 【課題】コイル導体間の結合がより低減されたインダクタを提供する。【解決手段】インダクタ１０は、複数の軟磁性薄帯１３１がＺ方向に積層されてなる磁性コア１００と、磁性コア１００をＺ方向に貫通し、Ｘ方向に配列された第１及び第２貫通孔１０１，１０２にそれぞれ挿入された第１及び第２コイル導体１１０，１２０とを備える。複数の軟磁性薄帯１３１のそれぞれは、ギャップＧによって複数の小片Ｐに分割されている。Ｘ方向におけるギャップＧの平均間隔をａ１とし、Ｙ方向におけるギャップＧの平均間隔をａ２とした場合、ａ１がａ２よりも小さい。これにより、第１コイル導体１１０と第２コイル導体１２０の結合係数が低下する。【選択図】図３