Vibration Motor Cantilever Elastic Connection
Solution Overview
Problem
Existing vibration motors suffer from redundant vibrations due to assembly tolerances and structural defects, leading to noise and instability in vibration effects.
Innovation Solution
The vibration motor incorporates a cantilever connected to the driving unit, which is elastically connected to the frame, allowing it to generate reverse vibrations and reduce redundant vibrations without affecting linear vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vibration unit is suspended by a suspension member, then the vibration unit can vibrate and provide vibration sensations, but assembly tolerances and structural defects cause the vibration unit to deflect in non-linear directions, creating redundant vibrations and noise
Solution Approach 1:
The cantilever acts as an intermediary component between the driving unit and the frame. It provides an elastic connection that allows the driving unit to generate counter-vibrations to compensate for redundant vibrations caused by assembly tolerances and structural defects, thereby improving vibration stability without affecting the vibration function
Solution Approach 2:
The cantilever enables the driving unit to generate preliminary counter-vibrations that oppose and cancel out the redundant vibrations caused by assembly tolerances and structural defects before they propagate, thus preventing noise and instability
2Device complexity
If the driving unit is rigidly connected to the frame, then the structure is simple and stable, but the driving unit cannot generate reverse vibrations to eliminate redundant vibrations
Solution Approach 1:
The connection between the driving unit and the frame is changed from rigid to elastic through the cantilever. This dynamic connection allows the driving unit to move slightly and generate reverse vibrations to counteract redundant vibrations, while maintaining overall structural stability with minimal added 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 design effectively eliminates redundant vibrations and improves the stability of the vibration motor, ensuring consistent and intended vibration effects.
Implementation Method 1
The side wall is provided with a cantilever corresponding to the driving unit. The driving unit is elastically connected to the frame through the cantilever. An elastic deformation direction of the cantilever is perpendicular to that of the suspension member.
Implementation Method 2
the suspension member supports vibrations of the vibration unit and provides elastic restoring forces to the vibration unit
Implementation Method 3
One of the vibration unit and the driving unit includes a coil, and the other includes a magnet for electromagnetically interacting with the coil
Data Source
AI summary
A vibration motor is disclosed. The vibration motor includes a frame, a vibration unit, a driving unit and a suspension member for suspending the vibration unit. The driving unit is adjacent to a side wall of the frame. The side wall is provided with a cantilever corresponding to the driving unit. The driving unit is elastically connected to the frame through the cantilever. An elastic deformation direction of the cantilever is perpendicular to that of the suspension member. The vibration motor can eliminate redundant vibrations and improve the stability.