Brush Head Air-Liquid Channels for Interdental Microbubble Cleaning
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Solution Overview
Problem
Existing oral cleaning devices lack effective mechanisms to enhance tooth cleaning, particularly in interdental spaces, and provide improved user experience.
Innovation Solution
The oral cleaning device incorporates a brush head with an airflow channel and a liquid guiding channel, generating microbubbles for enhanced cleaning by combining air and liquid, and features a compact design with a motor and airflow generating device to improve cleaning efficiency and user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional brush heads with motor and brush head are used to clean teeth, then friction force is generated to clean teeth, but the cleaning effect in interdental spaces is insufficient
Solution Approach 1:
The patent introduces an airflow generating device with airflow channels and multiple air outlet holes that direct airflow into interdental spaces. This pneumatic mechanism complements the mechanical brushing action, enabling effective cleaning of interdental areas that traditional brush heads cannot reach, thus resolving the contradiction between general cleaning effect and interdental cleaning capability
Solution Approach 2:
The brush head is divided into functional zones: bristle areas for general tooth surfaces and air outlet holes positioned for interdental spaces. This segmentation allows different cleaning mechanisms (mechanical friction from bristles and pneumatic flow from air holes) to operate simultaneously on different areas, improving both overall cleaning effect and interdental specificity
2Manufacturing precision
If airflow generating device and liquid guiding channel are added to the brush head, then microbubbles are generated for enhanced cleaning, but the device complexity increases
Solution Approach 1:
The airflow generating device and liquid guiding channel are integrated into a single brush head assembly, with air outlets and liquid outlets positioned to facilitate microbubble generation. By merging these functions into one component rather than separate devices, the patent enhances cleaning efficacy through microbubble impact while minimizing the increase in overall device complexity
Solution Approach 2:
The brush head structure serves as an intermediary that combines air flow and liquid flow paths, enabling microbubble formation without requiring a completely separate microbubble generation device. This intermediary approach allows enhanced cleaning through microbubbles while maintaining relatively simple device architecture
3Productivity
If multiple channels (airflow channel and liquid guiding channel) are integrated in the brush head, then cleaning efficiency is improved, but the device size increases
Solution Approach 1:
The liquid guiding channel is designed to extend through the head portion, with the airflow channel and air outlet holes integrated within or alongside the liquid channel structure. This nested arrangement allows both air and liquid flow paths to coexist in a compact configuration, improving cleaning efficiency through multi-channel operation while minimizing the increase in brush head volume
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
The device effectively cleans interdental spaces through microbubble impact and improves user experience by reducing device size and enhancing cleaning efficacy.
Implementation Method 1
an airflow is generated by the airflow generating device and passes through the second airflow channel and the first airflow channel to be sprayed out via the airflow hole
Implementation Method 2
clean interdental spaces by means of impact generated by instantaneous collapse and burst of the microbubbles
Implementation Method 3
the motor drives the brush head to swing or rotate to generate friction force to clean teeth
Data Source
AI summary
A brush head includes a shell and bristles mounted on a side of the shell. The shell includes a first airflow channel and a liquid guiding channel. The first airflow channel includes an air outlet hole facing the side of the shell on which the bristles are arranged and the liquid guiding channel includes a liquid outlet port located at the side of the shell on which the bristles are arranged such that the air output from the first airflow channel and the liquid output from the liquid guiding channel can be mixed at the area around the liquid outlet port to form abundant bubbles.