Compact Vibration Generator Layout for Reliable Haptic Feedback
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Solution Overview
Problem
Existing vibration generators in electronic devices have complex structures and occupy a large space, which is inefficient and limits their integration in compact devices.
Innovation Solution
A vibration generator comprising a housing with a control assembly generating an alternating magnetic field and a vibration assembly with a magnet and vibration sheet, where the magnet moves back and forth in the magnetic field to transmit vibrations to the housing, reducing component count and improving space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional vibration generator structure is used, then reliable vibration function is achieved, but device complexity and space occupation increase
Solution Approach 1:
The patent combines the control assembly and vibration assembly into a single integrated unit housed within one housing. The control assembly (including coil and magnetizer) and vibration assembly (including magnet and vibration sheet) are merged into a compact configuration where components share common structural elements and mounting arrangements, reducing overall device complexity while maintaining vibration functionality
Solution Approach 2:
The housing serves multiple functions: it provides structural support, contains both the control and vibration assemblies, and acts as part of the vibration transmission path. The vibration sheet is both a structural component connecting the magnet to the housing and the actual vibration element that transmits feedback. This multi-functionality reduces the number of separate components needed
2Reliability
If a traditional vibration generator structure is used, then reliable vibration function is achieved, but occupied space increases
Solution Approach 1:
The vibration assembly is nested within the housing, with the magnet positioned between the housing and the vibration sheet. The control assembly is also arranged within the same housing space, with the coil wound around the magnetizer which is positioned adjacent to the magnet. This nested arrangement allows multiple components to occupy overlapping or adjacent spatial volumes, maximizing space utilization
Solution Approach 2:
The patent arranges components in a compact three-dimensional configuration rather than a linear or planar layout. The magnet is positioned between the housing and vibration sheet in the thickness direction, while the coil wraps around the magnetizer in a radial arrangement. This dimensional optimization allows the vibration generator to achieve reliable vibration function within a minimal occupied volume
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 simplified structure allows for efficient vibration transmission with reduced components, enhancing space utilization and assembly efficiency while maintaining effective feedback mechanisms.
Implementation Method 1
The control assembly is fixed in the receiving space and configured to generate an alternating magnetic field, and directions of magnetic poles of the alternating magnetic field being periodically alternated
Implementation Method 2
The magnet is configured to vibrate back and forth in the alternating magnetic field and transmits vibrations to the housing
Data Source
AI summary
A vibration generator is provided, which includes a housing defining a receiving space, a control assembly fixed in the receiving space, and a vibration assembly received in the receiving space. The control assembly can generate an alternating magnetic field. The vibration assembly is movably received in the receiving space and includes a magnet and a vibration sheet. The vibration sheet is connected to the magnet and the housing. The magnet is configured to vibrate back and forth in the alternating magnetic field and transmits the vibrations to the housing.