Opening Detection Sheet Circuit Layout for Multi-Pocket Packaging
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Solution Overview
Problem
The increase in the number of storing portions in packaging materials leads to an increase in the number of wiring routes for the circuit pattern, increasing the likelihood of erroneous breakage of non-target wiring routes, and necessitates a larger planar size for the opening detection sheet.
Innovation Solution
A packaging material with an opening detection sheet featuring a common wiring route for all storing portions, connected to a common terminal, and individual terminals for each portion, along with perforation lines to assist breaking, reduces the risk of erroneous breakage and maintains a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of wiring routes is increased to detect opening of each storing portion, then the detection capability for multiple storing portions is improved, but the likelihood of erroneous breakage of non-target wiring routes increases
Solution Approach 1:
The wiring routes are segmented into two types: common wiring routes that are shared by multiple storing portions, and individual wiring routes that are dedicated to specific storing portions. This segmentation allows the system to maintain multiple detection channels while reducing the likelihood of erroneous breakage by ensuring that only the target wiring route is broken during normal opening operations.
Solution Approach 2:
The common wiring route serves multiple storing portions simultaneously, acting as a universal detection path. By making the wiring route structure multi-functional, the patent reduces the total number of separate wiring routes needed, thereby decreasing the probability of erroneous breakage while maintaining the ability to detect opening across multiple storing portions.
2Reliability
If the interval between wiring routes is increased to suppress erroneous breakage, then the reliability is improved, but the planar size of the opening detection sheet necessarily increases
Solution Approach 1:
Multiple individual wiring routes are merged into a single common wiring route that serves multiple storing portions. This merging reduces the total number of wiring routes that need to be spaced apart, allowing the wiring routes to be arranged more closely together and thereby reducing the overall planar size of the opening detection sheet while maintaining reliability.
Solution Approach 2:
The patent utilizes the vertical dimension by stacking wiring routes in layers rather than only spreading them out horizontally. The common wiring route and individual wiring routes are arranged in a multi-dimensional configuration, allowing closer spacing in the planar view while maintaining sufficient separation to prevent erroneous breakage.
3Adaptability or versatility
If the number of wiring routes is increased, then the detection coverage is improved, but the device complexity increases
Solution Approach 1:
The common wiring route is designed to serve multiple storing portions simultaneously, creating a multi-functional detection system. This universality reduces the total number of separate wiring routes required, thereby decreasing the complexity of the circuit pattern while maintaining comprehensive detection coverage across all storing portions.
Solution Approach 2:
The wiring route system is segmented into common and individual routes, creating a hierarchical structure that simplifies the overall circuit pattern design. This segmentation allows for more efficient routing and reduces the complexity compared to having completely separate wiring routes for each storing portion.
Data Source
AI summary
An opening detection sheet to be attached to a packaging material including storing portions includes a base layer, a circuit pattern disposed on the base layer and including wiring routes. Each of the wiring routes is provided for each of the storing portions. A first terminal is at one end of each of the wiring routes and to be connected to an external device and the first terminal is at a same position on some of the wiring routes.