Electret Vibration Generator Azimuth Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vibration power generators face challenges in maintaining optimal alignment between electrets and electrodes due to dimensional inaccuracies, leading to reduced power generation efficiency due to increased azimuth deviations during relative movement.
Innovation Solution
The vibration power generator employs a dual support system, where a first support maintains a suitable gap distance between electret and electrode groups via a bottom surface, and a second support, combined with a support retainer, biases the movable member towards a lateral inner wall surface to constrain azimuth deviations, ensuring proper alignment and efficient power generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a supporting steel ball is arranged in a void or groove to correct azimuth deviation, then alignment between electrets and electrodes is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention transitions from correcting azimuth deviation through complex lateral structures (voids or grooves) to a simpler solution by utilizing the vertical dimension. The side surface of the casing is used as a natural reference plane, and the azimuth correction is achieved by controlling the vertical positioning and orientation of the movable member relative to this side surface, thereby resolving the alignment issue without adding lateral structural complexity.
Solution Approach 2:
The invention employs the side surface of the casing itself as the reference plane for azimuth correction, eliminating the need for separate reference structures. The casing's own geometry serves the dual purpose of containment and alignment reference, allowing the system to self-correct azimuth deviations without requiring additional components or complex formations.
2Productivity
If dimensional accuracy of movable member or fixed member is increased to reduce azimuth deviation, then power generation efficiency is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The invention introduces the side surface of the casing as an intermediary reference plane that mediates between the movable member and the fixed member. Instead of requiring high dimensional accuracy between the movable and fixed members directly, the side surface serves as a common reference that both components can align to, thereby reducing the cumulative tolerance requirements and maintaining power generation efficiency with more relaxed manufacturing specifications.
3Reliability
If a void or groove is formed to support the movable member, then azimuth control is improved, but ease of manufacture deteriorates
Solution Approach 1:
The invention extracts the azimuth reference function from the movable member or fixed member themselves and assigns it to the side surface of the casing. By taking out the reference plane requirement from the moving components, the design eliminates the need to form voids or grooves in these components, thereby improving ease of manufacture while maintaining azimuth control stability through the casing's side surface.
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 maximally decreases azimuth deviations between electret and electrode arrays, enhancing power generation efficiency by maintaining optimal alignment and reducing the need for complex guide mechanisms, thus simplifying the production and operation of the vibration power generator.
Implementation Method 1
a vibration power generator configured to generate power by displacement between an electret group including a plurality of electrets and an electrode group including a plurality of electrodes in a relative movement direction in response to an external vibration
Data Source
AI summary
A vibration power generator configured to generate power by displacement between an electret group having a plurality of electrets and an electrode group having a plurality of electrodes in a relative movement direction in response to an external vibration, includes a casing in which the electret group and the electrode group are disposed, a fixed member in which one of the electret group and the electrode group is disposed, the fixed member being fixed to a side of the casing, and a movable member in which the other of the electret group and the electrode group is disposed. The movable member is disposed in the casing such that the movable member is relatively movable in response to the external vibration while opposed to the fixed member.