Detachable Handle Inductive Power Module With Grip Detection
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Solution Overview
Problem
Existing contactless power supply devices for electric devices with attachable handles suffer from inefficiencies in power transmission between the main body part and the auxiliary grip, and lack effective detection mechanisms for handle gripping.
Innovation Solution
A contactless power supply device with a protruding power transmission module and a power reception module in the handle, facilitated by a detection unit to enhance power transmission efficiency and enable handle detection, using magnetic materials and alignment mechanisms for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power transmission module is disposed within the main body part, then the device structure is compact, but the power transmission efficiency between the main body part and the handle deteriorates
Solution Approach 1:
The power transmission module is separated from the main body part and mounted on the handle as an independent component. This segmentation allows the power transmission coil on the handle to be positioned closer to the power reception coil in the main body part, improving magnetic coupling and power transmission efficiency while maintaining a compact overall structure through modular design.
Solution Approach 2:
The power transmission module is mounted on the lateral surface of the handle rather than being integrated within the main body part. This spatial repositioning in a different dimension (from internal to external lateral mounting) reduces the distance between the power transmission coil and power reception coil, enhancing power transmission efficiency without increasing the main body volume.
2Ease of repair
If the power transmission module is disposed within the main body part, then the device structure is integrated, but the maintenance and replacement of the power transmission module becomes difficult
Solution Approach 1:
The power transmission module is designed as a separate, detachable component mounted on the handle rather than being permanently integrated into the main body part. This segmentation enables independent access, removal, and replacement of the power transmission module without disassembling the main device structure, significantly improving maintenance ease.
Solution Approach 2:
The power transmission module is extracted from the main body part and repositioned on the handle as a standalone component. This extraction makes the module externally accessible and independently serviceable, allowing easy maintenance and replacement while maintaining the integrated appearance and functionality of the overall device.
3Adaptability or versatility
If the handle is made detachable for flexibility, then the adaptability improves, but the power transmission stability deteriorates
Solution Approach 1:
The handle is designed with a detachable mounting structure that allows dynamic attachment and detachment. The power transmission module is positioned on the handle such that when attached, the power transmission coil aligns with the power reception coil in the main body part, ensuring stable magnetic coupling and reliable power transmission during use, while maintaining flexibility for detachment when not needed.
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
Improves power supply efficiency and facilitates secure, efficient power transmission and detection of handle gripping, allowing controlled operation of the electric unit based on handle attachment.
Implementation Method 1
a power transmission coil electrified based on power supplied to the main body part... a power reception coil contactlessly supplied with power via the power transmission coil
Data Source
AI summary
A contactless power supply device includes a handle attachable and detachable with respect to a main body case at least partially covering a main body part including an electric unit, a power transmission module to be provided to protrude from the main body case, and having a power transmission coil electrified based on power supplied to the main body part, a power reception module housed in the handle to face the power transmission module when the handle is fixed to the main body case, and having a power reception coil contactlessly supplied with power via the power transmission coil, and a detection unit provided in the handle, driven based on the power supplied via the power reception module, and configured to detect whether the handle is being gripped.