Radiation Imaging Power Reception Coil Orientation
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Solution Overview
Problem
Current radiation imaging apparatuses face challenges in reducing the size and weight while maintaining power feeding efficiency when using non-contact power supply methods, as internal conductive members interfere with magnetic flux, and existing solutions either increase the housing size or require complex mechanisms.
Innovation Solution
A radiation imaging apparatus design where the power reception coil is oriented to align with the magnetic flux direction and the in-plane direction of the detector's incident surface, with a conductive member disposed in contact with the detector to minimize interference and reduce housing size without compromising power feeding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a partition is disposed between the shielding member and the power reception coil to prevent magnetic flux from passing through the shielding member, then power feeding efficiency is improved, but the size of the housing increases
Solution Approach 1:
The patent extracts the power reception coil from the conventional configuration and positions it on the incident surface side of the shielding member, rather than on the rear surface side. This extraction allows the magnetic flux to be directed away from the shielding member, improving power feeding efficiency without requiring additional partition structures that would increase housing size.
Solution Approach 2:
The patent changes the spatial dimension of the power reception coil placement from the rear surface side to the incident surface side of the shielding member. This dimensional repositioning alters the magnetic flux path, allowing efficient power transfer without interfering with the shielding member's function, thereby avoiding the need for extra housing space.
2Loss of energy
If the position of the power reception coil is made variable with an automatic control mechanism, then power feeding efficiency is optimized, but the size of the housing increases due to slide mechanisms
Solution Approach 1:
The patent positions the power reception coil on the incident surface side where it can effectively receive magnetic flux from the external power transmission coil. This fixed position is optimized to work with the shielding member configuration, eliminating the need for complex automatic control mechanisms or slide mechanisms that would increase housing size.
3Productivity
If internal conductive members are present in the housing, then the radiation detector can function, but magnetic flux is disturbed and power feeding efficiency decreases
Solution Approach 1:
The patent applies local quality by positioning the power reception coil specifically on the incident surface side of the shielding member, where the magnetic flux density is highest and least affected by internal conductive members. This localized placement ensures optimal power reception while maintaining the necessary conductive members for detector functionality elsewhere in the housing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for a reduction in the size and weight of the housing while maintaining efficient power feeding, preventing decreases in power efficiency and simplifying the structure by eliminating the need for complex mechanisms.
Implementation Method 1
This method supplies power to the battery through magnetic coupling between a power transmission coil and a power reception coil
Implementation Method 2
the power reception coil is disposed so that an orientation of the center of a generated magnetic flux coincides with an in-plane direction of the incident surface
Data Source
AI summary
A radiation imaging apparatus for supplying power in a non-contact manner includes a power reception coil disposed inside a housing together with a radiation detector and a detector contact conductive member, and configured to receive electric energy to be supplied to the radiation detector in a non-contact manner from a power feeding coil disposed outside the housing. The power reception coil is disposed in a second range including a first range in which the detector contact conductive member is formed in the normal direction (y direction) to an incident surface of the radiation detector where the radiation is incident so that an orientation of the center of a generated magnetic flux coincides with an in-plane direction (x direction) of the incident surface and coincides with a direction toward the radiation detector.