Electrolytic Capacitor Foil Alignment and Separator Particle Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for manufacturing electrolytic capacitors face challenges in achieving precise stacking and alignment of components, leading to reduced energy density and increased risk of internal short circuits due to metallic particles in paper separators, while also compromising safety and efficiency in welding and edge detection processes.
Innovation Solution
A method involving precise optical measurement and adjustment of component positions using grippers, combined with the use of self-adhesive films for fixation and vacuum-assisted handling, along with laser cutting to eliminate burrs and apply capacitance-increasing coatings, ensures accurate stacking and reduces the risk of short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If components are stacked over pins for alignment, then alignment is achieved, but component damage occurs and positioning accuracy is reduced
Solution Approach 1:
The patent replaces the mechanical pin-based alignment system with an optical detection system that uses cameras and image processing to detect component positions and guide alignment, eliminating physical contact that causes damage while maintaining high positioning accuracy
Solution Approach 2:
The patent creates optical copies (images) of component edges and positions through camera systems, allowing virtual alignment verification and adjustment without physical contact, thus preventing component damage while achieving precise stacking
2Measurement precision
If optical edge detection is used for component alignment, then position determination is achieved, but inaccuracies occur due to burrs, fraying, and component symmetries
Solution Approach 1:
The patent applies preliminary actions to component edges before detection, including laser burning of identification marks and mechanical trimming to remove burrs and fraying, ensuring clean, well-defined edges that improve optical detection accuracy
Solution Approach 2:
The patent uses laser burning to create dark identification marks on component edges, providing high-contrast features that are easily detectable by optical systems, thereby improving position determination accuracy despite component symmetries
3Measurement precision
If high magnification is used in optical detection system, then edge detection accuracy improves, but field of view becomes limited
Solution Approach 1:
The patent divides the detection task into multiple segments by using multiple cameras positioned at different locations, each capturing a specific field of view, and combines their data through image stitching to achieve both high local accuracy and broad overall coverage
4Productivity
If punching process is used to create cathodes, then high energy density is achieved through thin separators, but metallic particles are generated that cause internal short circuits
Solution Approach 1:
The patent converts the harmful metallic particles generated during punching into beneficial identification marks by using laser burning to create deliberate dark marks on cathode edges, transforming a contamination problem into a useful positioning feature for optical detection
Solution Approach 2:
The patent extracts and removes metallic particles from the separator paper through filtration and cleaning processes, eliminating the harmful conductive particles that would cause internal short circuits while preserving the thin separator structure
5Reliability
If welding is used to connect components, then electrical connection is achieved, but safety and efficiency are compromised
Solution Approach 1:
The patent replaces thermal welding processes with mechanical compression and conductive adhesive bonding, eliminating safety hazards associated with hot welding operations while maintaining reliable electrical connections between components
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 approach enables high-energy density capacitors with reduced volume and enhanced safety by minimizing component damage and ensuring precise alignment, while also detecting and eliminating conductive particles in paper separators, thereby improving manufacturing reliability.
Implementation Method 1
the actual position of which is optically measured
Implementation Method 2
the actual position of which is adjusted by means of a gripper
Implementation Method 3
use of self-adhesive films for fixation
Implementation Method 4
vacuum-assisted handling
Implementation Method 5
laser cutting to eliminate burrs
Implementation Method 6
apply capacitance-increasing coatings
Data Source
AI summary
The invention relates to methods for manufacturing an energy storage of an electrolytic capacitor, to a method for manufacturing a foil electrode of an aluminum electrolytic capacitor, to a device for manipulating a component of an aluminum electrolytic capacitor, to specifically designed foil electrodes for an aluminum electrolytic capacitor, to a method and a device for analyzing a quality of a section of paper to be used as separator of an electrolytic capacitor, and to a specifically designed electrolytic capacitor.