Capacitor Lead Processing for Uniform Shape and Defect Screening
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Solution Overview
Problem
Conventional methods for processing capacitors result in inefficient use of circuit board space due to protruding leads, which can cause separation and defects, necessitating a need for equipment that processes capacitors uniformly and tests their electrical integrity.
Innovation Solution
An apparatus and method that simultaneously process multiple capacitors, including clamping, alignment, expansion, polarity testing, cutting, and bending, with symmetrical modules to ensure uniform shape and electrical functionality, and a transport system to collect defect-free capacitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If leads are directly bonded to circuit board through soldering, then electrical connection is achieved, but circuit board space utilization deteriorates due to lead height occupation
Solution Approach 1:
The patent extracts the lead function by cutting and removing the protruding leads from the capacitor, replacing direct lead bonding with a bracket-based assembly system. This eliminates the space occupation issue while maintaining electrical connection through alternative means (bracket with electrodes).
Solution Approach 2:
The patent transitions from a three-dimensional lead protrusion approach to a two-dimensional planar assembly approach by using a bracket structure that lies flat on the circuit board, thereby reducing the vertical space occupation while maintaining electrical connectivity.
2Area of stationary object
If leads are bent to reduce height, then circuit board space is improved, but reliability deteriorates due to bent portion breakage and capacitor separation
Solution Approach 1:
The patent extracts and removes the problematic bent lead portions by cutting them off, eliminating the source of breakage and separation issues. The electrical connection is re-established through the bracket's electrodes that contact the capacitor body directly, bypassing the need for bent leads.
Solution Approach 2:
Instead of bending the leads to achieve space reduction, the patent inverts the approach by cutting the leads and using a bracket structure to achieve the same space-saving goal without the mechanical stress and reliability issues associated with bending.
3Ease of manufacture
If conventional capacitor processing is used, then individual processing is achieved, but productivity deteriorates due to inability to process multiple capacitors simultaneously
Solution Approach 1:
The patent merges multiple individual capacitor processing operations into a single integrated processing system that can handle multiple capacitors simultaneously. The processing apparatus includes multiple processing units arranged to work on several capacitors in parallel, thereby dramatically improving productivity while maintaining ease of manufacture through standardized operations.
Solution Approach 2:
The patent creates a universal processing apparatus that can perform multiple functions (cutting, alignment, expansion, testing) on multiple capacitors simultaneously through a single integrated system, thereby improving both productivity and manufacturing efficiency compared to separate individual processing steps.
4Productivity
If uniform capacitor shape processing is not implemented, then processing speed is improved, but quality deteriorates due to inconsistent capacitor shapes affecting assembly
Solution Approach 1:
The patent implements preliminary alignment and expansion actions on the capacitor leads before cutting, ensuring that all capacitors are positioned and shaped uniformly prior to the cutting operation. This preliminary preparation maintains manufacturing precision while enabling high-speed parallel processing of multiple capacitors.
Solution Approach 2:
The patent controls and standardizes key geometric parameters (lead length, capacitor body orientation, cut position) through the processing apparatus design, ensuring uniform output shapes. By maintaining consistent processing parameters across multiple capacitors, the system achieves both high productivity and manufacturing precision simultaneously.
Data Source
AI summary
An capacitor processing apparatus, and a method for processing a capacitor, may include a clamping module grabbing or releasing a capacitor to transport the capacitor, and processing modules matched with each other to process and test leads of the capacitor, and simultaneously perform various processes through different processing units formed in the processing modules. These various processes may include separating, bending, and cutting the leads of the capacitor. The testing and processing provided by the current invention make it is possible to process a larger amount of capacitors assembled to a capacitor assembly, and to identify and remove defective capacitors before assembly.