Refrigerator Dispenser Control for Concurrent Ice and Water Actuation
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Solution Overview
Problem
Refrigerator dispensers often face issues with simultaneous dispensing of ice and water, leading to potential spilling and inadvertent actuation due to concurrent activation of dispensing mechanisms, which existing technologies fail to adequately address.
Innovation Solution
A controller is configured to manage the concurrent actuation of ice and liquid dispensing actuators, preventing dispensing of either mechanism when both are activated simultaneously, allowing dispensing only when the activation is maintained beyond a threshold period or determining the first actuated mechanism to control dispensing accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both ice dispensing actuator and liquid dispensing actuator are activated concurrently, then both ice and water are dispensed simultaneously, but this leads to spilling and inadvertent actuation
Solution Approach 1:
The controller is configured to detect concurrent actuation of both ice and liquid dispensing actuators and prevent dispensing by both mechanisms in response, thereby applying a counter-action to offset the harmful effect of simultaneous dispensing that causes spilling
Solution Approach 2:
The controller monitors the actuation state of both dispensing actuators and adjusts dispensing operation based on this feedback, preventing dispensing when concurrent actuation is detected and allowing dispensing when actuation is sequential or single
2Productivity
If concurrent actuation is allowed, then both ice and water can be dispensed at the same time, but this causes spilling and operational errors
Solution Approach 1:
The system applies preliminary anti-action by detecting concurrent actuation before dispensing occurs and preventing the harmful effect of spilling through controller intervention that stops both dispensing mechanisms
3Reliability
If a threshold period is required for dispensing activation, then inadvertent actuation is prevented, but dispensing response time increases
Solution Approach 1:
The controller requires actuation to be maintained beyond a threshold period before enabling dispensing, applying partial action by only requiring minimal sustained input rather than continuous or complex activation sequences
Data Source
AI summary
A refrigerator dispenser includes an ice dispensing actuator, a liquid dispensing actuator configured to be actuated concurrently with the ice dispensing actuator, an ice dispensing mechanism configured to dispense ice responsive to actuation of the ice dispensing actuator, and a liquid dispensing mechanism configured to dispense liquid responsive to actuation of the liquid dispensing actuator. The refrigerator dispenser also includes a controller configured to cause the ice dispensing mechanism to dispense ice responsive to actuation of the ice dispensing actuator, to cause the liquid dispensing mechanism to dispense liquid responsive to actuation of the liquid dispensing actuator, and to prevent the ice dispensing mechanism and the liquid dispensing mechanism from both dispensing responsive to concurrent actuation of both the ice dispensing actuator and the liquid dispensing actuator.