Indicator lights in stand-alone ice making appliance

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Solution Overview

Problem

Stand-alone ice making appliances face performance issues due to scale deposits from hard and soft tap water, making it difficult for users to determine when descaling or cleaning is necessary.

Innovation Solution

The method involves monitoring the count of ice making operations and illuminating indicator lights on the user interface to suggest descaling or sanitizing processes for components like flexible tubing, ice makers, and extruders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If tap water is used for ice making operations, then ice production is enabled, but scale deposits accumulate inside the appliance leading to performance issues

Engineering Contradiction:

Improveice production capabilityVSAvoidappliance performance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary monitoring of ice making operation counts and proactively alerts users before scale deposits cause performance degradation. The indicator light system provides advance warning, allowing users to perform maintenance before reliability deteriorates.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the appliance operates for extended periods to produce ice, then productivity increases, but it becomes difficult to determine when cleaning is needed

Engineering Contradiction:

Improveice making outputVSAvoidmaintenance timing information

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The system implements a feedback mechanism by monitoring the count of ice making operations and providing visual feedback through indicator lights. This feedback loop informs users about the accumulated usage and when maintenance is required, preventing information loss about maintenance timing.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system uses color changes of indicator lights to communicate maintenance status. Different light patterns or colors indicate different maintenance levels, providing intuitive visual information about when cleaning or descaling is needed without requiring user interpretation of complex data.

Inventive Principle:

Principle #32Color changes

3Ease of operation

If simple operation is maintained, then ease of operation is preserved, but users cannot know when descaling or sanitizing is required

Engineering Contradiction:

Improveuser interface simplicityVSAvoidmaintenance status information

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The system performs self-monitoring of operational counts and automatically determines when maintenance is needed. This self-service capability eliminates the need for users to track usage manually or interpret complex technical data, maintaining simplicity while providing accurate maintenance information.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250085041A1Indicator lights in stand-alone ice making appliance

Publication Date: 2025.03.13 HAIER US APPLIANCE SOLUTIONS INC

AI summary

A method of operating an ice making appliance includes performing a plurality of ice making operations in the stand-alone ice making appliance, whereby ice is produced in the stand-alone ice making appliance. The method further includes monitoring a count of the plurality of ice making operations performed and illuminating an indicator light of a plurality of indicator lights on a user interface of the stand-alone ice making appliance upon reaching a predetermined count of the ice making operations performed. The indicator light indicates a suggested process.