US 11,984,730 B2
Power receiving device, laboratory animal biological information acquisition device, and laboratory animal biological information acquisition system
Fumihiro Sato, Miyagi (JP); Jun Shibuya, Miyagi (JP); Akifusa Yuyama, Miyagi (JP); Shu Sasaki, Miyagi (JP); Yoshiki Furuya, Miyagi (JP); Takehiko Sone, Miyagi (JP); and Kenichi Sagara, Miyagi (JP)
Appl. No. 16/624,315
Filed by Hikaridenshi Co., Ltd, Miyagi (JP)
PCT Filed Jun. 3, 2019, PCT No. PCT/JP2019/022023
§ 371(c)(1), (2) Date Dec. 19, 2019,
PCT Pub. No. WO2019/235436, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 2018-109869 (JP), filed on Jun. 7, 2018; and application No. 2019-020009 (JP), filed on Feb. 6, 2019.
Prior Publication US 2020/0177027 A1, Jun. 4, 2020
Int. Cl. H02J 50/10 (2016.01); A01K 29/00 (2006.01); A61B 5/00 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H01F 27/30 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/10 (2016.02) [A01K 29/00 (2013.01); A61B 5/002 (2013.01); A61B 5/0031 (2013.01); A61B 5/6861 (2013.01); H01F 27/24 (2013.01); H01F 27/28 (2013.01); H01F 27/306 (2013.01); A61B 2503/40 (2013.01); A61B 2503/42 (2013.01); A61B 2560/0219 (2013.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02)] 24 Claims
OG exemplary drawing
 
1. A power receiving device including a secondary coil part, which receives power transmitted from a primary coil part of a power transmission device in a contactless manner,
wherein the secondary coil part has a magnetic core having a circular or polygonal cross section perpendicular to the longitudinal direction and three spiral coils constructed by winding a conductor so that the outer shape is substantially square, and
the three spiral coils are arranged in an annular coil array in the circumferential direction of the magnetic core so that the sides thereof are close to each other and cover the entire peripheral surface of the magnetic core.