Plate-Spring Vibration Support for Horizontal Motion Control
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Solution Overview
Problem
Conventional vibration generating devices face challenges in reducing vertical vibration while ensuring sufficient horizontal vibration width, as they either restrict horizontal vibration due to excessive rigidity or allow excessive vertical vibration due to insufficient fixation.
Innovation Solution
The vibration generating device employs a plate spring with a vibration plate portion supported by front and rear fixed plate portions, where the first elastic plate portion connects the left and right ends to the front fixed plate, and the second elastic plate portion connects them to the rear fixed plate, ensuring isolation between these components to control vibration directionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastic support member uses a conventional plate spring structure with continuous connections, then the horizontal vibration width is sufficient, but excessive vertical vibration occurs due to insufficient fixation
Solution Approach 1:
The elastic support member is divided into separate first and second elastic plate portions that are isolated from each other. The first elastic plate portion connects only to the front fixed plate portion, while the second elastic plate portion connects only to the rear fixed plate portion. This segmentation prevents continuous deformation paths that cause vertical vibration, while maintaining horizontal vibration capability through the distributed elastic support structure.
2Object-affected harmful factors
If the elastic support member increases rigidity to reduce vertical vibration, then vertical vibration is reduced, but horizontal vibration width becomes insufficient
Solution Approach 1:
Different regions of the elastic support member have different connection characteristics. The first elastic plate portion provides local support at the front with isolation from the rear, while the second elastic plate portion provides local support at the rear with isolation from the front. This local quality differentiation allows the structure to be rigid enough to reduce vertical vibration in each local region while maintaining overall flexibility for horizontal vibration through the distributed isolated connections.
3Object-affected harmful factors
If the elastic support member uses isolated elastic plate portions, then vertical vibration is reduced, but the structure complexity increases
Solution Approach 1:
The first and second elastic plate portions are merged into a single integrated elastic support member structure that includes both the vibration plate portion and the fixed plate portions. This merging approach maintains the isolation benefit for reducing vertical vibration while simplifying the overall structure compared to using completely separate components, as the elastic support member functions as a unified structural element with distributed isolation characteristics.
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 configuration effectively reduces vertical vibration while maintaining a sufficient horizontal vibration width, preventing excessive rigidity or vertical vibration, thus optimizing vibration control.
Implementation Method 1
an elastic support member fixed to the housing and supporting the vibration body so as to be able to vibrate
Implementation Method 2
a vibration generating device that vibrates a permanent magnet as a movable portion by using a magnetic field generated by a coil and a magnetic field generated by the permanent magnet
Data Source
AI summary
A vibration generating device includes a housing; a vibration body in the housing; an elastic support member fixed to the housing and supporting the vibration body; and a driver that applies a vibration force to the vibration body. The elastic support member includes a vibration plate configured to support the vibration body; a front fixed plate disposed in front of the vibration plate and fixed to the housing; a rear fixed plate disposed behind the vibration plate and fixed to the housing; a first elastic plate connecting one of a left or right end of the vibration plate to the front fixed plate; and a second elastic plate connecting the other one of the left or right end to the rear fixed plate. The first elastic plate is isolated from the rear fixed plate, and the second elastic plate is isolated from the front fixed plate.