US 11,811,282 B2
Coil device having a core with plate shaped coil bodies
Hajime Ukaji, Hyogo (JP); Mitsuoki Hishida, Osaka (JP); Kiyomi Kawamura, Osaka (JP); and Toshiyuki Tamamura, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/285,457
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Oct. 17, 2019, PCT No. PCT/JP2019/040947
§ 371(c)(1), (2) Date Apr. 14, 2021,
PCT Pub. No. WO2020/080479, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 2018-196585 (JP), filed on Oct. 18, 2018.
Prior Publication US 2021/0344242 A1, Nov. 4, 2021
Int. Cl. H02K 3/04 (2006.01); H02K 1/12 (2006.01); H02K 3/12 (2006.01); H02K 3/28 (2006.01)
CPC H02K 3/04 (2013.01) [H02K 1/12 (2013.01); H02K 3/12 (2013.01); H02K 3/28 (2013.01)] 5 Claims
OG exemplary drawing
 
2. A coil device comprising:
a core having a columnar portion extending in a predetermined extending direction;
a first coil including a plate-shaped first coil body having a first end and a second end, the first coil body being spirally wound on the columnar portion of the core along the extending direction such that the second end is positioned on one side in the extending direction relative to the first end;
a second coil including a plate-shaped second coil body having a third end and a fourth end, the second coil body being spirally wound on the columnar portion of the core along the extending direction such that the third end is positioned on the one side in the extending direction relative to the second end of the first coil, and the fourth end is positioned on the one side of the extending direction relative to the third end, the second coil being in electrically parallel connection with the first coil;
a first conductor that electrically connects the first end of the first coil body and the fourth end of the second coil body; and
a second conductor that electrically connects the second end of the first coil body and the third end of the second coil body,
a winding direction of the second coil body being opposite to a winding direction of the first coil body.