Integrated Sonic Motor Oral Care Device for Compact Rinsing
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Solution Overview
Problem
Existing oral care devices face issues with increased size due to separate motors for toothbrushing and rinsing functions, requiring additional pipelines and motors, leading to discomfort and inconvenience in use.
Innovation Solution
An oral care device with a sonic motor and integrated fluid mechanism, where the power output shaft forms an axial channel, allowing direct fluid delivery without external pipes, reducing overall size and weight, and incorporating damping cushions to minimize vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate motors are used for toothbrushing and rinsing functions, then both functions can be achieved, but the device size increases and becomes inconvenient to hold
Solution Approach 1:
The patent combines the rinsing motor and toothbrushing motor into a single integrated motor unit. The motor shaft is designed with both a rinsing output end and a toothbrushing output end, allowing one motor to drive both functions simultaneously. This merging eliminates the need for separate motors and reduces overall device volume.
Solution Approach 2:
The motor shaft is designed as a multi-functional component that serves dual purposes: one end drives the rinsing function while the other end drives the toothbrushing function. This universal design allows a single component to perform multiple functions, reducing the number of parts needed and decreasing device size.
2Reliability
If rinsing pipeline is disposed on outer side of motor, then interference between motor and pipeline is avoided, but additional pipelines increase device size
Solution Approach 1:
The rinsing pipeline is nested within the motor structure by passing through the motor shaft itself. The pipeline is positioned inside the motor housing and connects to the rinsing output end of the motor shaft, eliminating the need for external pipelines and reducing device complexity.
3Productivity
If shaft lever and hollow shaft lever are not concentric, then eccentric mechanism can transmit vibration, but superfluous vibration is generated
Solution Approach 1:
A counterweight is added to the hollow shaft lever to balance the eccentric mechanism. The counterweight compensates for the offset between the shaft lever and hollow shaft lever, eliminating superfluous vibration while maintaining the necessary vibration transmission for the toothbrushing function.
4Adaptability or versatility
If additional motor and pipeline are added for rinsing function, then rinsing function is achieved, but device weight increases
Solution Approach 1:
The rinsing motor is merged with the toothbrushing motor into a single integrated motor unit. By sharing the same motor housing and power source, the weight of separate motors and their associated pipelines is eliminated, reducing overall device weight while maintaining both functions.
Solution Approach 2:
The integrated motor serves dual functions: one output end drives the rinsing function while the other end drives the toothbrushing function. This multi-functional design eliminates the need for additional motors and heavy pipeline structures, reducing device weight.
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 achieves a compact design with improved user comfort and convenience by integrating rinsing and toothbrushing functions, reducing vibration and noise, and optimizing fluid delivery.
Implementation Method 1
a sonic motor assembly unit includes a motor, an eccentric driving shaft, an output shaft... A power transmission system converts rotation of the eccentric driving shaft into an oscillatory motion of the output shaft
Implementation Method 2
the pump can convey liquid oral cavity cleaning liquid or disinfectant into the brush head... water in the water storage cavity can enter the axial channel from the first inlet of the axial channel under the action of the fluid mechanism
Implementation Method 3
The document US 20180008388A1 discloses... a vibration damping unit which is provided between the outer case and the vibration transmission unit, thereby maintaining cleaning performance of the electric toothbrush, reducing magnitude of vibration to be transmitted to a user
Data Source
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AI summary
The present disclosure provides an oral care device. The oral care device includes a handle part and a care head part; the handle part includes: a sonic motor including a motor body and a power output shaft, the power output shaft being provided with an axial channel as well as a first inlet and a first outlet communicating with the axial channel; a fluid mechanism provided with a fluid inlet and a fluid outlet, the fluid outlet communicating with the first inlet; and a housing including a machine mounting part and a water storage cavity, the machine mounting part being internally provided with a mounting rack, the mounting rack being provided with a motor compartment and a pump body compartment, the sonic motor being mounted in the motor compartment, the fluid mechanism being mounted in the pump body compartment, and a head of the machine mounting part being provided with a mounting shaft hole; and the care head part is provided with a rinsing stem and a brush head, the rinsing stem being provided with a fluid channel capable of communicating a spray nozzle with the axial channel. By using the oral care device provided by the present disclosure, the reasonable layout of a rinsing flow path can be achieved, the overall size of the oral care device can be reduced, it is convenient for a user to perform an operation, and the comfort level provided for a user during use can be improved.