Single Paddle Ice and Water Dispenser for Reduced Mechanism Complexity
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Solution Overview
Problem
Existing ice and water dispensing systems in refrigeration appliances often require complex mechanisms and user interfaces, which can be cumbersome and inefficient for selecting and dispensing ice and water, lacking a straightforward method to switch between these options.
Innovation Solution
A dispensing unit with a movable actuator that supports either water or ice dispensing based on its position, featuring a passageway for ice and an ice door that opens or closes to control ice dispensing, along with selectors and a controller to manage the dispensing modes, allowing for intuitive selection and delivery of ice and water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two actuators and multiple selection devices are used for ice and water dispensing, then the dispensing functionality is complete, but the device complexity increases
Solution Approach 1:
The patent combines two separate actuators into a single paddle actuator that can be pushed in different directions (left for water, right for ice) to control both water and ice dispensing. This merging reduces the number of mechanical components while maintaining the ability to selectively dispense water or ice.
Solution Approach 2:
The single paddle actuator serves multiple functions: it can be pushed left to activate water dispensing, pushed right to activate ice dispensing, and pushed center to cancel dispensing. This multi-functional design replaces multiple specialized actuators and selection devices with one universal control element.
2Adaptability or versatility
If multiple actuators and selection devices are provided, then ice and water can be selectively dispensed, but the ease of operation decreases
Solution Approach 1:
Multiple selection devices (ice button, water button) are merged into a single paddle interface that responds to directional pushes. Users simply push the paddle left for water or right for ice, eliminating the need to locate and press separate buttons.
Solution Approach 2:
The paddle actuator automatically determines the dispensing mode based on the direction of user input. The system self-activates the appropriate dispensing function (water or ice) without requiring the user to select from multiple devices, making operation more intuitive and easier.
3Device complexity
If a single paddle actuator is used for both ice and water dispensing, then the device complexity is reduced, but the measurement precision of actuator position must be high
Solution Approach 1:
The system incorporates position detection means that continuously monitor the paddle actuator's position and provide feedback signals to the control unit. This feedback mechanism enables precise determination of whether the paddle is pushed left (water), right (ice), or center (cancel), allowing the system to accurately respond to user input despite using a single actuator.
Data Source
AI summary
A dispensing unit is operatively associated with a refrigeration appliance for selectively dispensing water and ice at a dispensing station. The dispensing unit includes an actuator that is movable to selected positions in order to support the dispensing of the water and ice. The dispensing unit can include a passageway through which ice is dispensed, and an ice door can be provided for selectively opening and closing the passageway to the dispensing of ice. In one aspect, the ice door can be opened and closed mechanically and in another aspect, the ice door can be opened and closed electromechanically. The dispensing unit also can provide for the position of a water-dispensing nozzle to be adjusted for the purpose of dispensing water to receptacles outside a recessed area at which the nozzle is located and to provide for the activation of illuminating devices to indicate operating conditions at the refrigeration appliance.