Electrostatic Actuator Stacked Electrode Plates Manufacturing
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Solution Overview
Problem
Conventional electrostatic actuators require a long time to manufacture and face challenges in downsizing due to the complexity of plain-woven electrode tapes, which increases with the number of tapes used to achieve a large plate area.
Innovation Solution
The electrostatic actuator employs alternately stacked first and second electrode plates with adhesive applied in different patterns, allowing for easier manufacturing and maintaining a large plate area, using dielectric sandwiched electrode films with adhesive applied in specific patterns to create disk spring structures that facilitate expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the number of plain-woven electrode tapes is increased to achieve a large plate area, then the plate area is improved, but the manufacturing time increases significantly
Solution Approach 1:
The invention divides the electrode structure into separate electrode plates with adhesive applied in specific patterns, rather than using multiple plain-woven tapes. This segmentation allows each plate to be manufactured independently and stacked efficiently, achieving large plate area without proportionally increasing manufacturing time.
Solution Approach 2:
The invention transitions from a two-dimensional plain-weave structure to a three-dimensional stacked structure of electrode plates. By stacking plates with adhesive applied in alternating patterns, the design achieves large effective area through vertical stacking rather than horizontal expansion, reducing manufacturing complexity.
2Area of stationary object
If the number of plain-woven electrode tapes is increased to achieve a large plate area, then the plate area is improved, but the device complexity increases making downsizing difficult
Solution Approach 1:
The electrode assembly is segmented into discrete plates with simplified adhesive patterns, replacing the complex interlaced structure of multiple tapes. This segmentation reduces structural complexity while maintaining large plate area through efficient stacking.
Solution Approach 2:
Adhesive is applied in specific local patterns on electrode plates rather than uniformly across the entire surface. This localized adhesive application simplifies the overall structure while ensuring proper bonding in critical areas, facilitating easier manufacturing and potential downsizing.
3Area of stationary object
If electrode tapes are plain-woven to create electrode plates, then the plate area can be increased, but the electrode tapes are subjected to bending which complicates manufacturing
Solution Approach 1:
Instead of bending electrode tapes to form plates, the invention inverts the approach by stacking pre-formed electrode plates with adhesive applied in specific patterns. This eliminates the bending process entirely, significantly improving manufacturing ease while achieving the desired plate area.
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 method enables the generation of electrostatic actuators with a large plate area more easily and efficiently, while maintaining the distance between electrode films within a predetermined range, ensuring consistent and uniform expanding and contracting operations.
Implementation Method 1
a plurality of first electrode plates in each of which an adhesive is applied on one surface in a first pattern, and a plurality of second electrode plates in each of which the adhesive is applied on one surface in a second pattern
Implementation Method 2
An electrostatic actuator can obtain a large driving force while having a light weight, and thus it is expected as a power source as an alternative to a motor or the like utilizing a magnetic force. For example, a large number of electrodes are stacked in an electrostatic actuator, and the electrostatic actuator expands or contracts in accordance with a voltage applied to a place between the stacked electrodes.
Data Source
AI summary
There are provided a plurality of first electrode plates in each of which an adhesive is applied on one surface in a first pattern, and a plurality of second electrode plates in each of which the adhesive is applied on one surface in a second pattern which is different from the first pattern, in which the plurality of first electrode plates and the plurality of second electrode plates are alternately stacked without causing the surfaces on which the adhesive is applied to face each other.