Wireless Power Transfer Charging Delay Display
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Solution Overview
Problem
In wireless charging systems, users face challenges in determining the reasons for charging time delays and non-charging phenomena due to limitations in power transmission capability and compatibility issues between different wireless power transfer systems, leading to prolonged charging times and unclear fault identification.
Innovation Solution
A wireless power transfer system that includes a power transmitting unit, a recognition unit, and a display unit, which transmits and receives predetermined charging delay information to and from the secondary-side apparatus, allowing users to recognize the cause of charging issues through visual displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power transmitting capability of the primary-side apparatus is limited by the wireless charging system specification, then the system can maintain standard compatibility, but multiple secondary-side apparatuses cannot be charged simultaneously, leading to prolonged charging times
Solution Approach 1:
The patent segments the power transmission process by introducing a recognition unit that identifies individual secondary-side apparatuses and a transmitting unit that sends charging delay information to each recognized apparatus. This segmentation allows the system to manage multiple apparatuses separately while maintaining overall system compatibility, resolving the contradiction between standard compliance and charging efficiency.
2Device complexity
If the primary-side apparatus does not provide charging status information, then the system structure remains simple, but users cannot identify the causes of charging delays or failures
Solution Approach 1:
The patent implements a feedback mechanism where the transmitting unit sends charging delay information back to the recognized secondary-side apparatus, and the display unit presents this information to the user. This feedback loop provides users with actionable charging status information without significantly complicating the system structure, as it utilizes existing communication channels between the apparatuses.
3Adaptability or versatility
If different wireless power transfer systems (electromagnetic induction and electromagnetic resonance) are used simultaneously, then the system supports multiple charging methods, but apparatuses with different systems cannot be charged by the wrong system type
Solution Approach 1:
The patent applies preliminary action by implementing a recognition unit that identifies the wireless power transfer system type of each secondary-side apparatus before power transmission begins. This preliminary recognition allows the primary-side apparatus to prepare the appropriate charging mode in advance, preventing compatibility issues and ensuring reliable charging for both electromagnetic induction and electromagnetic resonance systems.
Data Source
AI summary
A wireless power transfer system comprising a wireless power transmitting apparatus and a plurality of wireless power receiving apparatuses, the wireless power transmitting apparatus comprising: a power transmitting unit adapted to transmit power to the wireless power receiving apparatus; a recognition unit adapted to recognize the wireless power receiving apparatus; and a transmitting unit adapted to transmit predetermined charging delay information according to a recognition result of the recognition unit to the wireless power receiving apparatus recognized by the recognition unit, and the wireless power receiving apparatus comprising: a power receiving unit adapted to receive power transmitted from the power transmitting unit; a receiving unit adapted to receive the predetermined charging delay information transmitted from the transmitting unit; and a display unit adapted to make a display based on the predetermined charging delay information received by the receiving unit.