Detachable Electric Toothbrush Head With Electrode Assembly
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Solution Overview
Problem
Conventional toothbrushes are ineffective in removing dental plaque from hard-to-reach areas, leading to tooth decay and periodontal disease due to the difficulty in accessing and removing plaque in small spaces.
Innovation Solution
An electric toothbrush design featuring a detachable head unit with a handle unit that supplies driving voltage, utilizing a combination of electrodes and a signal supply unit to generate an electric field for effective plaque removal, and allowing for easy replacement of the head unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional toothbrushes are used, then the structure is simple and easy to manufacture, but they are ineffective in removing dental plaque from hard-to-reach areas
Solution Approach 1:
The toothbrush is divided into a handle unit and a head unit that can be detached from each other. The head unit contains bristles for mechanical cleaning, while the handle unit houses electrodes for electrical stimulation. This segmentation allows each component to perform its specialized function effectively.
Solution Approach 2:
The invention combines mechanical bristle cleaning with electrical stimulation in a single toothbrush system. The electrodes are integrated into the head unit alongside the bristles, allowing simultaneous mechanical and electrical action on dental plaque for enhanced removal effectiveness.
2Ease of repair
If the head unit is detachable for easy replacement, then maintenance becomes easier, but the connection structure becomes more complex
Solution Approach 1:
The toothbrush is divided into a handle unit and a head unit that can be detached from each other. The head unit contains bristles for mechanical cleaning, while the handle unit houses electrodes for electrical stimulation. This segmentation allows each component to perform its specialized function effectively.
Solution Approach 2:
The head unit is designed as a replaceable component that can be easily detached and replaced when worn out. This allows users to dispose of and replace the head unit without replacing the entire toothbrush, reducing long-term costs and facilitating easy maintenance.
3Reliability
If electrodes are added to generate electric field, then plaque removal effectiveness improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention combines mechanical bristle cleaning with electrical stimulation in a single toothbrush system. The electrodes are integrated into the head unit alongside the bristles, allowing simultaneous mechanical and electrical action on dental plaque for enhanced removal effectiveness.
Solution Approach 2:
The head unit serves multiple functions: it contains bristles for mechanical cleaning and electrodes for electrical stimulation. This multi-functionality allows a single component to perform both mechanical and electrical plaque removal, reducing the need for separate devices.
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 electric toothbrush effectively removes dental plaque, preventing tooth decay and periodontal disease by generating an electric field that weakens plaque structures, while the detachable design facilitates easy maintenance and replacement of worn-out parts.
Implementation Method 1
an electrode assembly installed adjacent to the receiving member inside the head unit, and when the handle unit and the head unit are combined, passing through the plurality of insertion parts and electrically connected to ends of the plurality of connection terminals located inside the head unit
Data Source
AI summary
An electric toothbrush includes a head unit and a handle unit detachably combined with the head unit and supplying a driving voltage to the head unit in response to a user's manipulation. The handle unit includes an insertion member including a base portion and one or more protrusion portions protruding from the base portion, and a plurality of connection terminals having a portion positioned to protrude outward from the insertion member, and electrically connected to the head unit when the head unit and the handle unit are combined. The head unit includes a receiving member including an inlet part recessed to a depth into which the insertion member is inserted, a separation preventing part protruding from an inner wall surface of the inlet part and located to overlap with the protrusion portion when the insertion member is inserted into the inlet part and then rotated at a certain angle, and a plurality of insertion parts formed to pass through a bottom surface of the inlet part; and an electrode assembly installed adjacent to the receiving member inside the head unit, and when the handle unit and the head unit are combined, passing through the plurality of insertion parts and electrically connected to ends of the plurality of connection terminals located inside the head unit.