Linear Vibration Motor Support With Segmented Magnet Accommodation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing linear vibration motors face challenges in assembling precision due to counterpointing deviations between magnets and supports, leading to unreliable magnet fixation and potential disconnection during vibration, affecting the motor's stability and performance.
Innovation Solution
The design includes a support with a second accommodation space divided into a main and auxiliary spaces, where weight blocks are precisely positioned in auxiliary spaces, and magnets are fixed to separation walls, enhancing assembly precision and stability by supporting the magnets, preventing disconnection during vibration, and using additional magnets to increase magnetic field intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If magnets are directly glued at the inner side of the support, then the assembly process is simple, but the magnets cannot be sufficiently supported and are easy to disconnect during vibration
Solution Approach 1:
The support is divided into a first support portion and a second support portion, with the second support portion specifically designed to accommodate and support the magnets. This segmentation provides dedicated structural support for the magnets while maintaining assembly simplicity.
Solution Approach 2:
The second support portion acts as an intermediary structure between the magnets and the first support portion. It provides adequate support to the magnets during vibration while enabling simple assembly through the integrated design.
2Manufacturing precision
If magnets and support are counterpointed for assembly, then positioning is attempted, but counterpointing deviation occurs which cannot ensure assembling precision
Solution Approach 1:
The second support portion is pre-formed with a shape that corresponds to the magnets, providing preliminary positioning and support. This eliminates the need for complex counterpointing operations during assembly, ensuring precision without increasing complexity.
Solution Approach 2:
The support structure itself provides the positioning and support function through its geometric design. The second support portion's shape naturally guides and supports the magnets, making the assembly process self-aligning and precise without requiring additional alignment operations.
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 simplifies the assembly process, improves precision, and enhances the vibrating reliability and performance of the linear vibration motor by ensuring accurate magnet positioning and stable fixation, resulting in improved assembly efficiency and motor performance.
Implementation Method 1
a coil assembly fixed on the housing and driving the vibrating unit to vibrate
Data Source
AI summary
A linear vibration motor includes a housing with a first accommodation space, a vibration unit, an elastic part and a coil assembly fixed on the housing. The vibrating unit includes a support connected with the elastic part, and includes a top wall perpendicularly to a vibrating direction of the vibrating unit, a side wall bending and extending from a periphery of the top wall, a through hole penetrating the top wall, and two separation walls respectively bending and extending from the two opposite sides of the through hole. The top wall and the side wall enclose to form a second accommodation space which is divided by the two separation walls into a main accommodation space and two auxiliary accommodation spaces. The linear vibration motor further includes at least one weight block accommodated and fixed in the auxiliary accommodation spaces, and at least one magnet respectively fixed to the support.