Linear Vibrating Motor Non-Linear Elastic Suspension
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Solution Overview
Problem
Linear vibrating motors suffer from low stability and reliability due to deformation of spiral springs causing the magnet module to deviate from the appropriate vibration direction.
Innovation Solution
A linear vibrating motor design featuring a shell with a magnetic assembly suspended by an elastic module with a non-linear arrangement of elastic members, providing surface contact and non-linear elastic force to restrict the vibrating module to vibrate in a specific direction, enhancing stability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spiral springs are used to suspend the magnet module, then the magnet module can be suspended and driven to perform linear vibration, but the spiral springs may deform in any direction causing the magnet module to deviate from the appropriate vibration direction, resulting in low stability and reliability
Solution Approach 1:
The elastic module is divided into multiple elastic members (first elastic member, second elastic member, third elastic member) with specific connection relationships. The first elastic member connects the first protrusion to the first sidewall, the second elastic member connects the second protrusion to the second sidewall, and the third elastic member connects the third protrusion to the bottom. This segmentation constrains deformation in specific directions while maintaining suspension functionality.
Solution Approach 2:
Each elastic member is positioned and configured to provide elastic support in specific locations and directions. The first elastic member primarily constrains deformation in the first direction, the second elastic member in the second direction, and the third elastic member in the third direction. This local quality approach ensures that each part of the elastic module addresses specific stability requirements.
2Use of energy by moving object
If a single magnetic circuit with coil module surrounding the magnet is used, then strong vibrations can be produced with low energy input, but the design complexity increases
Solution Approach 1:
The coil module is designed to surround the magnet part, merging the magnetic circuit components into a compact integrated structure. This configuration allows the magnetic field to be generated efficiently with minimal energy input while maintaining a relatively simple overall design through the unified surrounding arrangement of the coil around the magnet.
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 design ensures the vibrating module remains aligned, improving stability, reliability, and vibration linearity, while reducing energy consumption and extending lifespan by using a single magnetic circuit with a coil module surrounding the magnet for strong vibrations with low energy input.
Implementation Method 1
the vibrating motors transform electrical energy into mechanical energy based on electromagnetic induction
Implementation Method 2
an elastic module for suspending the magnetic assembly, wherein the elastic module includes a non-linear arrangement of elastic members
Data Source
AI summary
A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a shell, a vibrating module, a coil module and an elastic module. The shell provides a receiving cavity; the vibrating module is received in the receiving cavity for generating a linear vibration; the coil module is configured for driving the vibrating module to vibrate. The elastic module is configured for suspending the vibrating module in the receiving cavity, and includes a first elastic member, a second elastic member and a third elastic member connected between the vibrating module and the shell at a first connecting point, a second connecting point and a third connected point, the first connecting point, the second connecting point and the third connecting point are arranged in a non-linear manner.