Sonic Oral Cleaner Motor Mounting for Vibration and Noise Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing oral cavity cleaning devices experience significant vibration and noise due to improper motor mounting, leading to a poor user experience and reduced motor lifespan.
Innovation Solution
The oral cavity cleaning device incorporates a sonic motor with a front and rear cushion for damping, along with a mounting rack and core mounting part with multi-point elastic contact and strategically arranged elastic bosses, to reduce vibration transmission and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the motor is mounted directly in the housing without cushioning, then the structure is simple and easy to manufacture, but the motor generates large vibration and noise that affects user experience and motor lifespan
Solution Approach 1:
The patent introduces cushioning elements (front cushion and rear cushion) as intermediary components between the motor and the mounting rack. These cushions act as mediators that isolate the motor vibrations from the housing structure, thereby reducing transmitted vibration and noise while maintaining a relatively simple mounting structure.
Solution Approach 2:
The patent applies cushioning elements beforehand at the motor mounting locations (front and rear ends of the motor shaft). This prior cushioning prevents vibration transmission before it reaches the housing and control panel, addressing the harmful effects in advance while keeping the structure straightforward.
2Productivity
If the motor shaft rotates rapidly without proper isolation, then the cleaning function is effective, but the motor shaft bumps against the housing generating noise and damaging the motor
Solution Approach 1:
The cushioning elements serve as intermediaries between the motor shaft and the mounting rack, preventing direct contact and bumping during rapid rotation. This isolation maintains cleaning efficiency while protecting the motor from damage and reducing noise.
Solution Approach 2:
By pre-installing cushioning elements at the motor mounting positions, the patent ensures that vibration and impact are absorbed before they can cause damage to the motor or housing during high-speed operation, thereby extending motor service life.
3Device complexity
If the motor vibration is not damped, then the structure remains simple, but the vibration transmits to the control panel causing loose connections and motor damage
Solution Approach 1:
The cushioning elements act as vibrational intermediaries that decouple the motor from the mounting rack and control panel. This simple intermediary structure prevents vibration transmission that would otherwise loosen control panel connections and damage the motor, without significantly increasing structural complexity.
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 solution effectively dampens motor vibrations, reducing noise and improving user experience while extending the motor's service life by dispersing vibration energy through multiple contact points.
Implementation Method 1
a front cushion, arranged at a front end of the sonic motor in a sleeved manner, wherein the front end of the sonic motor is mounted in the core mounting part by the front cushion; and a rear cushion, arranged at a rear end of the sonic motor in a sleeved manner, wherein the rear end of the sonic motor is mounted in the motor chamber by the rear cushion
Implementation Method 2
multi-point elastic contact is formed between a periphery of the mounting rack and an inner wall of the core mounting part
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure provides an oral cavity cleaning device. The oral cavity cleaning device includes: a sonic motor, including a motor body and a power output shaft, wherein the power output shaft has an axial channel parallel to an output axis and a first inlet and a first outlet communicating with the axial channel; a fluid mechanism, having a fluid inlet and a fluid outlet, wherein the fluid outlet communicates with the first inlet; a housing, including a core mounting part, wherein a mounting rack is arranged in the core mounting part and has a motor chamber and a pump chamber, the sonic motor is mounted in the motor chamber, and the fluid mechanism is mounted in the pump chamber; a front cushion, arranged at a front end of the sonic motor in a sleeved manner, wherein the front end of the sonic motor is mounted in the core mounting part by the front cushion; and a rear cushion, arranged at a rear end of the sonic motor in a sleeved manner, wherein the rear end of the sonic motor is mounted in the motor chamber by the rear cushion. By means of the oral cavity cleaning device of the present disclosure, vibration transmitted by the motor to a handle housing can be reduced, a vibration noise is reduced, and use experience of a user is improved. (Fig. 1)