Inductive Charging System Wireless Data Transmission
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Solution Overview
Problem
Existing inductive charging systems for hand-held power tools do not facilitate the updating of software components for both the tool and the charging device, limiting their functionality and efficiency.
Innovation Solution
An inductive charging system with a hand-held power tool device and a charging device that includes energy storage and transmission units, which also serve as communication units, enabling wireless data transmission for updating software components, allowing the charging device to receive programming data from an external electronic device and transmit it to the tool, and vice versa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate data transmission interfaces are added to enable software updates, then software update capability is improved, but device complexity increases
Solution Approach 1:
The patent applies multi-functionality by enabling the energy transmission unit and energy receiver unit to perform dual functions: both wireless energy transfer and wireless data transmission. Through modulation and demodulation of the electromagnetic signals, the same hardware components (transmission coil and receiver coil) are used for both charging and software updates, eliminating the need for separate data interfaces and reducing device complexity.
2Adaptability or versatility
If additional communication hardware is installed for data transmission, then data communication capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent reduces manufacturing cost by making the energy transmission unit and energy receiver unit perform dual functions. Instead of manufacturing separate data communication hardware, the same transmission and reception coils are used for both energy transfer and data communication, thereby reducing component count and manufacturing expenses.
Solution Approach 2:
The patent merges the energy transmission function and data transmission function into a single integrated system. The modulation unit and demodulation unit are incorporated into the existing energy transfer pathway, combining multiple functions into unified hardware structures that reduce overall system cost.
3Device complexity
If the same components are used for both energy and data transmission, then device complexity is reduced, but transmission reliability may worsen
Solution Approach 1:
The patent employs periodic modulation of the electromagnetic signals to encode data within the energy transmission waveform. By using distinct modulation frequencies or patterns for data encoding, the system can reliably separate data signals from energy signals in the time or frequency domain, maintaining transmission reliability despite using shared components.
Solution Approach 2:
The patent introduces modulation and demodulation units as intermediary components that enable reliable data transmission through the energy transmission channel. These intermediary units encode data onto the energy signals and decode them at the receiving end, acting as mediators that preserve transmission reliability while using shared hardware.
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
Enables software updates for hand-held power tool devices and charging devices without the need for physical disassembly, improving operational reliability and reducing costs by allowing simultaneous energy and data transmission through the same components.
Implementation Method 1
at least one charging device (14a, 14b), which is provided for inductive charging of the hand-held power tool device
Implementation Method 2
the first communication unit and the second communication unit are intended to communicate with one another wirelessly
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to an energy transfer system, in particular an inductive charging system, comprising at least one hand-held power tool device (10a; 10b) which has at least one first communication unit (12a; 12b), and at least one charging device (14a; 14b) which is designed for contactless charging of the hand-held power tool device (10a; 10b) and which has at least one second communication unit (16a; 16b). It is proposed that the first communication unit (12a; 12b) and the second communication unit (16a; 16b) are designed to communicate with each other, at least for the transmission of data.