Electric Toothbrush Head Elastic Fixing Column
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Solution Overview
Problem
Existing electric toothbrushes have complex internal structures, leading to high production costs, instability, and poor teeth cleaning effectiveness, with inconvenient disassembly and stability issues.
Innovation Solution
The electric toothbrush replacement head device features a simpler structure with a hollow fixing column and elastic sheet for direct power transmission, copper-free bristle implantation for hygiene, and a metal ring for enhanced stability and cleaning power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rapid rotation of motor is used to drive toothbrush head to vibrate, then teeth cleaning effect is improved, but internal structure becomes complex and production cost increases
Solution Approach 1:
The patent removes the complex motor and transmission components from the toothbrush head, extracting only the essential vibration function. The handle directly generates vibrations that are transmitted to the brush head through a simplified connection, eliminating the need for motors, gears, and other transmission mechanisms in the head assembly.
Solution Approach 2:
The patent replaces the motor-driven mechanical vibration system with a direct vibration transmission system. Instead of using a motor to rotate and transmit mechanical energy through multiple components, the handle directly generates vibrations that are transmitted through a simplified mechanical connection to the brush head.
2Ease of manufacture
If traditional connection structure is used between replacement head and handle, then assembly is achieved, but disassembly is inconvenient and stability is poor
Solution Approach 1:
The connection structure employs dynamic characteristics through elastic elements that allow the replacement head to be easily attached and detached. The elastic component provides flexibility during assembly while maintaining stable connection during use, and allows for convenient disassembly by overcoming the elastic retention force.
Solution Approach 2:
The patent uses an elastic sheet or flexible elastic component in the connection structure between the handle and replacement head. This flexible element provides both retention for stable connection and allows for easy separation when disassembling, resolving the contradiction between assembly stability and disassembly convenience.
3Strength
If copper bristle implantation technology is used, then bristle fixation is achieved, but pollution from copper sheet rusting occurs
Solution Approach 1:
The patent adopts a disposable replacement head design where the brush component with bristles is easily replaceable. Instead of using copper sheets that rust and require maintenance, the entire brush head is designed as a replaceable unit that can be discarded and replaced, eliminating the pollution problem from copper rusting while maintaining effective bristle fixation during its service life.
Solution Approach 2:
The patent removes the copper sheet component from the bristle implantation structure, extracting the harmful rusting property while retaining the essential function of securing bristles. The copper-free design eliminates the source of pollution while maintaining bristle fixation through alternative means.
4Power
If multiple transmission components are used in motor-driven system, then power transmission is achieved, but structural instability increases and damage rate rises
Solution Approach 1:
The patent extracts and removes the motor and multiple transmission components from the system. Power transmission is achieved directly through vibrations generated in the handle that are transmitted through a simplified connection to the brush head, eliminating the chain of transmission components that caused structural instability and high damage rates.
Solution Approach 2:
The patent merges the power generation and transmission functions into a unified direct vibration transmission system. Instead of separating motor, transmission gears, and connection mechanisms into multiple components, the system combines these functions into a streamlined configuration where the handle directly generates and transmits vibrations to the brush head.
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
This design reduces production costs, enhances stability and cleaning effectiveness, and improves user convenience by simplifying assembly and disassembly, while ensuring safety and hygiene through copper-free technology.
Implementation Method 1
a middle part of the fixing column is provided with an elastic sheet, the elastic sheet is used to compress a shaft core of a main machine to transmit power from the shaft core
Data Source
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AI summary
An electric toothbrush replacement head device includes: a toothbrush replacement head. The toothbrush replacement head includes: a toothbrush handle and a toothbrush head, a bottom of the toothbrush handle defines a bottom hole, the toothbrush head includes: a brush component, and the brush component includes: bristles. The toothbrush handle is provided with a hollow fixing column therein, which is located at a lower end of the toothbrush handle, a middle part of the fixing column is provided with an elastic sheet, and a bottom of the fixing column defines a mounting hole. A new type of the electric toothbrush replacement head device with a simpler structure, more flexible assembly and disassembly, more convenient use, better teeth cleaning effect, and stronger stability is provided.