Linear Vibrator Height Reduction via Lateral Fastening Arms
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Solution Overview
Problem
Existing linear vibrators in consumer products face challenges in reducing the height of elastic members, which increases the overall height of the device, making it difficult to fix the vibrating unit firmly on the housing.
Innovation Solution
A linear vibrator design featuring a cover and base forming a hollow space with elastic members, a weight suspended by these members, and a magnet assembly with magnetic poles positioned below a coil, where the elastic members have fastening arms that abut against both the weight and the base's sidewalls, allowing for reduced height and secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic members are made taller to firmly fix the vibrating unit on the housing, then the fixation reliability is improved, but the overall height of the linear vibrator increases
Solution Approach 1:
The elastic members transition from a conventional vertical suspension structure to a horizontal fastening structure. The fastening arms extend laterally to abut against the sidewalls of the base, converting the fixation mechanism from vertical to horizontal dimension, thereby reducing height while maintaining fixation reliability
Solution Approach 2:
The elastic member is divided into functional segments: a connecting portion for attachment, fastening arms for lateral fixation against sidewalls, and support portions for vertical suspension. This segmentation allows each part to perform its specific function efficiently, with fastening arms providing horizontal constraint and support portions providing vertical suspension
2Length of stationary object
If elastic members are made shorter to reduce the height of the linear vibrator, then the compactness is improved, but the fixation reliability deteriorates
Solution Approach 1:
The fixation mechanism moves from vertical to horizontal dimension through the fastening arms that abut against the sidewalls. This dimensional transition allows short elastic members to achieve reliable fixation through lateral constraint rather than vertical length
Solution Approach 2:
The fixation function is extracted from the vertical suspension function. The fastening arms are specifically designed to abut against the sidewalls, separating the fixation mechanism from the vertical support function, allowing independent optimization of each function
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 reduces the total height of the linear vibrator while ensuring a firm fixation of the vibrating unit, enhancing the device's compactness and functionality.
Implementation Method 1
a magnet assembly provided with a plurality of magnetic poles and accommodated in the weight
Implementation Method 2
a pair of elastic members received in the hollow space... each elastic member defines at least a fastening arm comprising a connecting portion, an inner arm extending from one end of the connecting portion for abutting against the lateral of the weight
Data Source
AI summary
A linear vibrator is disclosed. The linear vibrator includes a cover, a base forming a hollow space together with the cover and defining a plurality of sidewalls, a pair of elastic members received in the hollow space, a weight with a plurality of laterals suspended in the hollow space by the elastic members, and a magnet assembly provided with a plurality of magnetic poles and accommodated in the weight. Each elastic member defines at least a fastening arm comprising a connecting portion, an inner arm extending from one end of the connecting portion for abutting against the lateral of the weight, and an outer arm extending from another end of the connecting portion for abutting against the sidewall of the base. The extending direction of the inner arm and the outer arm of each fastening arm is the same. The magnetic poles of magnet assembly near the coil are opposite to each other. A height of the linear vibrator with the structure can be reduced.