NFC-Controlled Light Therapy Toothbrush Head for Multi-Mode Care
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional toothbrushes lack deep oral cleaning and care capabilities, and existing electric toothbrushes with functional loads face challenges in wireless power supply and signal control, leading to single working modes and limited user adjustability.
Innovation Solution
An adjustable light therapy care electric toothbrush with an NFC chip in the toothbrush head and a card reading chip in the handle, enabling wireless signal control through these chips to switch and regulate multiple modes of functional loads, including light therapy lamp beads, while using low power consumption and minimal space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless power supply is achieved using power transmitting and receiving coils, then the toothbrush can power functional loads without wired connection, but the technical problem of wireless signal control remains unsolved
Solution Approach 1:
The patent combines the wireless power supply function and wireless signal control function into a single integrated system. The power transmitting coil and power receiving coil in the handle and head respectively serve dual purposes: transferring power wirelessly and enabling NFC communication for mode selection. This merging resolves the contradiction by making one system accomplish multiple functions that were previously separate problems.
Solution Approach 2:
The NFC chip and coil system is designed to perform multiple functions simultaneously: wireless power reception, NFC card reading for mode selection, and potential data communication. This multi-functionality approach allows the same components to address both the power supply challenge and the signal control challenge without requiring separate dedicated systems.
2Ease of operation
If Bluetooth technology is used for wireless signal control, then the toothbrush can communicate and control functions, but the power consumption is high and cannot be supported by the built-in battery for long time
Solution Approach 1:
The patent uses NFC technology instead of Bluetooth, leveraging the existing low-power NFC chip and coil infrastructure already present in the toothbrush for wireless power reception. NFC operates at much lower power consumption levels suitable for battery-powered devices, allowing extended operation without requiring large battery capacity or frequent recharging.
3Ease of operation
If infrared technology is used for wireless signal control, then the toothbrush can achieve signal reception, but the structural characteristics make it basically impossible to achieve with the electric toothbrush design
Solution Approach 1:
The patent replaces the mechanical/optical infrared system with an electromagnetic field-based NFC system. Instead of requiring physical alignment of infrared transmitters and receivers, the NFC system uses magnetic field coupling through coils, which naturally accommodates the detachable head-handle configuration and provides contactless communication without complex optical alignment requirements.
4Reliability
If the toothbrush head contains functional loads powered by built-in battery and internal wiring, then the cleaning and care effects are improved, but the space of the toothbrush body is limited making it difficult to load electrical components
Solution Approach 1:
The patent extracts the power supply function from the toothbrush head and places it in the handle, where the battery and power management circuitry are located. The head contains only the necessary functional loads (brushing mechanism, light therapy LEDs, ultrasonic vibration) connected via a simple wireless power receiving coil, significantly reducing the volume required in the head while maintaining all desired functions.
Solution Approach 2:
The wireless power receiving coil acts as an intermediary between the power source in the handle and the functional loads in the head. This allows power transfer without requiring physical wiring through the head, eliminating the need for large battery capacity or complex internal wiring in the head, thereby reducing overall volume while maintaining functional reliability.
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 multiple working modes with low power consumption and minimal volume, enhancing the practicality and care efficacy of the toothbrush.
Implementation Method 1
encapsulating an NFC (Near Field Communication) chip and a memory in a toothbrush head, encapsulating a card reading chip in a toothbrush handle and achieving wireless signal control through the card reading chip and the NFC chip
Implementation Method 2
wireless power supply has been achieved by setting a wireless power receiving coil and a power transmitting coil between two relatively independent components (the toothbrush head and the toothbrush handle)
Data Source
AI summary
An adjustable light therapy care electric toothbrush is provided, including a toothbrush head and a toothbrush handle. A second circuit board assembly is built in the toothbrush head, an NFC chip and a memory are encapsulated on the second circuit board assembly, a signal receiving antenna is arranged in the toothbrush head, a first circuit board assembly is built in the toothbrush handle, a card reading chip is encapsulated on the first circuit board assembly, the card reading chip is in wireless signal communication with the NFC chip, and functional loads are arranged in the toothbrush head and electrically connected to the second circuit board assembly. According to the adjustable light therapy care electric toothbrush, encapsulating the NFC chip and the memory in the toothbrush head, encapsulating the card reading chip in the toothbrush handle and achieving wireless signal control through the card reading chip and the NFC chip.