Current Blocking Element Assembly for Consumable Usage Tracking

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Solution Overview

Problem

Current current integrating circuits for predicting maintenance time or lifetime of electronic apparatuses and consumable components are costly and complex, leading to inconveniences such as loss of usage history and increased risk of unauthorized components due to their high production costs and component complexity.

Innovation Solution

A current blocking element with a simple structure and low production costs, comprising a first electrode layer, an ion conductive layer, and a second electrode layer, where ions are moved between layers to control current flow, blocking it when ions are depleted or saturated, allowing for cost-effective integration in consumable components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a current integrating circuit is mounted on a consumable component, then usage history tracking is improved, but production costs increase

Engineering Contradiction:
Improveusage history trackingVSAvoidproduction costs
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

The patent extracts the current integration function from a complex circuit and implements it using a simple capacitor that accumulates charge proportionally to usage. This extracted approach maintains usage history tracking while dramatically reducing manufacturing complexity and cost.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs inexpensive passive components (capacitor, resistor) instead of expensive integrated circuits in the consumable component. These simple components are cheap enough to be disposed of with the consumable item, enabling usage tracking without increasing production costs significantly.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Ease of operation

If a current integrating circuit with reset function is used, then component replacement is simplified, but usage history is lost when consumable is reused

Engineering Contradiction:
Improvecomponent replacementVSAvoidusage history
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

Instead of resetting the counter upon removal (conventional approach), the patent inverts the logic: the capacitor naturally discharges when the consumable is removed from the device, automatically preserving the accumulated usage data without requiring any reset mechanism or additional control circuitry.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The capacitor automatically performs the function of usage history preservation through its natural charge retention property. No external control system, reset button, or additional circuitry is needed - the component itself serves the function of maintaining usage information passively.

Inventive Principle:
Principle #25Self-service

3Loss of information

If serial number management is implemented, then usage history tracking is improved, but costs increase

Engineering Contradiction:
Improveusage history trackingVSAvoidcosts
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

The patent replaces complex electronic management systems (serial number databases, software tracking) with a simple electrical measurement approach. The usage history is obtained by measuring the voltage across a capacitor that naturally accumulates charge from current flow, eliminating the need for expensive serial number management infrastructure.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Measurement precision

If a complex current integrating circuit is used, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvecurrent integration precisionVSAvoidcircuit complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent changes the measurement parameter from counting discrete integration steps (complex) to measuring continuous voltage proportional to accumulated charge (simple). By measuring voltage across a capacitor, the system achieves precise current integration without requiring complex circuitry, as voltage naturally scales with accumulated charge according to Q=CV.

Inventive Principle:
Principle #35Parameter changes

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

The solution provides a cost-effective and simple method to track the usage history of consumable components and prevent unauthorized use by controlling current flow based on ion depletion or saturation, reducing operational complexities and costs.

Implementation Method 1

an ion conductive layer having ionic conductivity and not having electronic conductivity

Methodology Applied
Scientific EffectIonic conductivity: Conduction (electrical)

Implementation Method 2

a first electrode layer configured to hold ions... a second electrode layer configured to hold ions

Methodology Applied
Scientific EffectIon storage: Battery (electricity)

Data Source

PatentUS11996834B2Current blocking element assembly and product having current blocking element assembly
Publication Date: 2024.05.28 MURATA MFG CO LTD
  • US11996834B2 patent drawing
  • US11996834B2 patent drawing
  • US11996834B2 patent drawing

AI summary

A current blocking element assembly is provided and includes first and second current blocking elements, first current blocking element including: first-A electrode layer configured to hold ions; first ion conductive layer configured to conduct ions and does not have electronic conductivity; and second-A electrode layer configured to hold ions, first-A electrode layer, first ion conductive layer, and second-A electrode layer laminated in order, second current blocking element including: first-B electrode layer configured to hold ions; second ion conductive layer configured to conduct ions and does not have electronic conductivity; and second-B electrode layer configured to hold ions, first-B electrode layer, second ion conductive layer, and second-B electrode layer laminated in order, wherein the second-A electrode layer and the second-B electrode layer are electrically connected.