Power reception device, experimental animal biological information acquisition device, and experimental animal biological information acquisition system
A technology for power receiving devices and power consuming devices, which is applied in the direction of circuit devices, circuits, inductors, etc., and can solve problems such as inability to supply power
Active Publication Date: 2021-01-08
KODENSHI
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- Description
- Claims
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Problems solved by technology
[0009] However, in the case of using non-contact power transmission technology, the electromagnetic induction coupling changes depending on the posture or position of the experimental animal, and power supply may become impossible
Method used
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Embodiment
[0183]Hereinafter, examples of the present invention are illustrated.
[0184]This is the following example:
[0185]The direction of the vertical direction of the magnetic field at the location of the secondary coil portion 22 brought by the primary coil 21
[0186]The intensity of the magnetic field at the location of the secondary coil section 22 brought by the primary coil 21 is 100 μT
[0187]AC drive frequency of primary side coil 21 500kHz
[0188]A coil in which the shape of the secondary side coil portion 22 is curved to be along the outer surface of the cross-sectional circular core
[0189]The load impedance shown by the addition circuit of the secondary side coil section 22 is 500Ω
[0190]Wire of the coil
[0191]Number of windings 30~50
[0192]The shape of the magnetic core:Thickness: 0.2mm cylindrical
[0193]The addition circuit is connected in parallel.
[0194]Characteristic example-1 The secondary side coil is composed of two sets of two coils
[0195]
[0196]
[0197]Characteristic example-2 The second...
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The present invention provides a power reception device that is for contactless transmission of power to experimental animal biological information acquisition devices 12 that have been embedded in a plurality of experimental animals that are inside a breeding cage 14, that makes it possible to observe the behavior of the experimental animals from the outside, without a power transmission side covering the breeding cage 14, and that makes it possible for power to be supplied continuously, regardless of the locations or orientations of the experimental animals. According to the present invention, a secondary side coil part 22 has: a magnetic core 31 that has a circular cross-sectional shape at cross-sections taken perpendicularly to the longitudinal direction; and a plurality of spiral coils 40a, 40b that are formed by winding around a conductor to produce a substantially quadrangular external shape. The plurality of spiral coils 40a, 40b are annularly arranged (form a ring) in the circumferential direction of the magnetic core 31 so as to be adjacent at respective sides (40a1, 40b1), (40a2, 40b2) and to cover the entirety of a circumferential surface of the magnetic core 31.
Description
Technical field[0001]The invention relates to a power receiving device, an experimental animal biological information acquisition device, and an experimental animal biological information acquisition system.Background technique[0002]In the development of pharmaceuticals, etc., in order to evaluate the effects, experiments using small animals such as a large number of mice raised in a breeding cage are routinely performed. When conducting experiments, small animals are equipped with a biological information acquisition device for acquiring biological information such as body temperature, activity level, heart rate, and blood pressure over time. The biological information acquisition device adopts a method of externally attaching to a small animal and a method of embedding in a living body. In order to know more accurate values, more methods of embedding are used.[0003]An important point in the embedding method is the power supply to the biological information acquisition device. In t...
Claims
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IPC IPC(8): A01K29/00H02J50/10H02J50/40
CPCH01F38/14H01F2003/005H01F3/00H02J50/005A61B5/055A61B5/02A61B5/01A61B2562/0219A61B5/002A01K29/00H02J50/10H02J50/40H02J2310/23H01F27/24H01F27/28A61B2503/42H02J50/80A61B2560/0219A61B2503/40A61B5/6861A61B5/0031H01F27/306H02J50/12
Inventor 佐藤文博古屋善纪涩谷润曾根竹彦汤山昭房相良健一佐佐木秀
Owner KODENSHI