Water Filter Purge Indication Using Sensor and User Interface Prompts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing refrigerators lack an effective method to ensure proper operation of water filters after installation, particularly in ensuring air is purged from the system, which is crucial for the filter's service life and quality of dispensed water.
Innovation Solution
A refrigerator system that includes a user-actuated control feature and sensor to prompt the user to purge the water filter upon installation, utilizing a predefined amount of water flow through the filter, with a memory unit to track filter usage and lifespan, and a user interface to notify the user of the need for purging and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water filter is installed in the refrigerator, then water filtration function is improved, but air may remain in the filter causing improper operation
Solution Approach 1:
The system performs preliminary purging action automatically after filter installation by detecting the installed state through sensor 12 and activating pump 28 to circulate water through filter 15, removing air before normal operation begins. This preliminary action ensures the filter is properly primed without requiring user intervention.
Solution Approach 2:
The system uses sensor 12 to detect filter installation state and provides feedback to controller 22, which then activates the purging sequence. The system continuously monitors and adjusts the purging process based on feedback from sensors tracking water flow and filter status, ensuring complete air removal.
2Reliability
If the user is prompted to purge the water filter, then proper operation is ensured, but the system complexity increases
Solution Approach 1:
The system performs self-service by automatically detecting filter installation through sensor 12 and initiating the purging sequence without user intervention. The controller 22 autonomously manages the entire purging process, including activating pump 28 and monitoring completion, reducing system complexity from the user perspective.
Solution Approach 2:
The patent replaces complex mechanical purge indication mechanisms with electronic sensing and control systems. Sensor 12 detects filter presence electrically, and controller 22 manages the purging sequence through electronic signals to pump 28 and display 32, simplifying the overall system architecture.
3Ease of operation
If a sensor and control system are added to track filter installation, then purging can be automatically prompted, but manufacturing cost increases
Solution Approach 1:
Sensor 12 serves multiple functions: detecting filter installation, triggering purge sequence, and providing status information to user interface 30. Controller 22 manages multiple operations including purging, monitoring, and user notification, reducing the need for separate dedicated components and lowering overall manufacturing cost.
Solution Approach 2:
The patent combines the filter detection sensor, control logic, and user notification system into an integrated assembly. The controller 22 consolidates multiple control functions, and the user interface 30 merges display and alert functions, reducing component count and simplifying manufacturing assembly processes.
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
Ensures proper operation of the water filter by removing air and tracking usage, thereby extending the filter's service life and maintaining water quality, while also reminding users to replace the filter at the appropriate time.
Implementation Method 1
a water filter to filter the water supplied to the water dispenser and/or ice maker
Implementation Method 2
Purging involves causing water to flow into and through the water filter, thereby displacing air in the water filter
Data Source
AI summary
A refrigeration system includes a water circulation system and a replaceable water filter. The refrigerator includes a sensor that determines if a water filter is present, and a user interface that prompts a user to purge a water filter upon installation of a new water filter in the refrigerator. The water filter may include a memory storage device that stores information concerning the allowable life of the water filter, the remaining life of the water filter, and other information. Information concerning the remaining life of the water filter and other information can be displayed or otherwise communicated to a user by the user interface.