Linear Vibration Device Elastic Suspension Segmentation
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Solution Overview
Problem
Existing linear vibration devices suffer from poor endurance and shortened lifespan due to the elastic member's inability to firmly fix the vibrating unit in the receiving cavity, leading to inadequate tactile feedback in consumer products.
Innovation Solution
A linear vibration device design featuring a cover, crust, printed circuit board, annular coil, and elastic members that securely suspend a magnet assembly and weight, with the elastic members capable of deformation to firmly assemble the moving unit, ensuring stable vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastic member is used to suspend the vibrating unit in the receiving cavity, then the vibrating unit can move freely for vibration, but the elastic member cannot fix the vibrating unit firmly, leading to poor endurance and shortened lifespan
Solution Approach 1:
The elastic member is divided into multiple segments or layers, with each segment providing specific functions such as suspension, positioning, and limiting. This segmentation allows the vibrating unit to move freely during vibration while being firmly constrained in position, resolving the contradiction between free movement and firm fixation for improved endurance
Solution Approach 2:
The elastic member is pre-configured with specific deformation characteristics and pre-tensioning to ensure that the vibrating unit is firmly positioned before vibration begins. This preliminary action ensures both free movement during operation and firm fixation to prevent deterioration, thereby extending lifespan
2Productivity
If the elastic member allows free vibration of the moving unit, then tactile feedback can be generated, but the moving unit becomes loose and fails to remain firmly assembled, reducing device reliability
Solution Approach 1:
Different regions of the elastic member are designed with different mechanical properties - some regions provide flexibility for vibration generation while other regions provide rigidity for firm positioning. This local differentiation enables the moving unit to vibrate freely for tactile feedback while remaining firmly assembled, resolving the contradiction between productivity and reliability
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 solution enhances the endurance and lifespan of the vibration device by providing a secure assembly of the moving unit, resulting in improved tactile feedback and extended device longevity.
Implementation Method 1
the elastic members capable of deformation to firmly assemble the moving unit
Implementation Method 2
a coil located on the base... The coil is positioned right below the magnet
Data Source
AI summary
A linear vibration device is disclosed. The linear vibration device includes a housing, a plurality of elastic members received in the housing, each of the elastic member has a fastening portion connecting to the housing, an elastic arm extending from the fastening portion, and a mounting portion extending from the elastic arm, a moving unit suspended in the housing by the elastic members, a coil located below the moving unit, a supporting portion coupling to the elastic member, the supporting portion has a supporting plate covering at least a part of a top surface of the moving unit and a supporting arm extending downwardly from the supporting plate for pushing the mounting portion toward the positioning portion of the moving unit, the mounting portion has a fender defining a top part above the top surface of the moving unit for restricting the position of the supporting plate.