Power receiving device, experimental animal biological information acquisition device, and experimental animal biological information acquisition system

摘要

PROBLEM TO BE SOLVED: To transmit electric power to a laboratory animal biometric information acquisition device 12 embedded in a plurality of laboratory animals in a breeding cage 14 in a non-contact manner. To provide a power receiving device capable of observing behavior and continuously feeding power regardless of the direction and position of a laboratory animal. A secondary side coil portion (22) has a magnetic core (31) having a circular cross section perpendicular to the longitudinal direction, and a plurality of spiral coils (40a) formed by winding a conductor so as to have a substantially rectangular outer shape. The plurality of spiral coils 40a, 40b each have a side (40a1 and 40b1) and (40a2 and 40b2) close to each other so as to cover the entire peripheral surface of the magnetic core 31 and to form a magnetic body. The cores 31 are arranged in an annular shape (to form a ring) in the circumferential direction. [Selection diagram]