Beverage machine with carafe compatible drip tray
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Solution Overview
Problem
Beverage forming systems face challenges in allowing carafe placement regardless of lid position and in efficiently managing waste liquid overflow and dripping, leading to potential spills and machine operation interruptions.
Innovation Solution
A beverage forming apparatus with a carafe receiving area that can accommodate carafes with lids in any position and a drip tray assembly using separate waste liquid receiving areas with a single sensor to detect different volumes of liquid, preventing overflow and managing dripping efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the carafe receiving area requires the lid to be in a specific position for beverage dispensing, then beverage dispensing reliability is improved, but carafe placement convenience deteriorates
Solution Approach 1:
The system dynamically adjusts its response based on lid position detection. The controller detects whether the lid is open or closed and automatically prevents beverage dispensing when the lid is closed, while allowing free placement when open. This dynamic adaptation resolves the contradiction by making the system flexible to user intent rather than requiring fixed mechanical constraints.
Solution Approach 2:
The system uses feedback from the lid position detector to control beverage dispensing. The detector provides real-time information about lid position, and the controller uses this feedback to automatically prevent dispensing when the lid is closed, eliminating the need for mechanical position requirements and improving both reliability and convenience.
2Object-affected harmful factors
If the system prevents beverage dispensing when the lid is closed, then spill prevention is improved, but user operation flexibility deteriorates
Solution Approach 1:
The lid position detector provides continuous feedback to the controller, which automatically adjusts dispensing behavior. When the lid is detected as closed, the system prevents dispensing to avoid spills. When opened, normal operation resumes. This feedback mechanism prevents spills without restricting user flexibility, as the system adapts automatically to the user's actions.
Solution Approach 2:
The system monitors its own operational conditions through the lid position detector and automatically takes corrective action by preventing dispensing when inappropriate. This self-monitoring and self-correction capability eliminates spills without requiring user intervention or restricting user freedom to place and remove carafes as needed.
3Measurement precision
If the drip tray rapidly responds to all waste liquid, then overflow detection is improved, but false detection of normal dripping deteriorates
Solution Approach 1:
The drip tray uses different detection thresholds for different locations or types of liquid accumulation. Normal dripping from the beverage outlet is detected with a higher threshold that allows small amounts, while overflow conditions are detected with a lower threshold that triggers rapid response. This local differentiation of detection sensitivity resolves the contradiction between rapid overflow detection and tolerance of normal dripping.
Solution Approach 2:
The system changes the detection parameter (liquid volume threshold) based on the type of condition being monitored. For normal operational dripping, a higher volume threshold is used that permits small amounts without triggering shutdown. For potential overflow conditions, a lower threshold enables rapid detection. This parameter adjustment allows the system to distinguish between normal and abnormal liquid accumulation.
4Measurement precision
If multiple sensors are used to detect different waste liquid conditions, then detection accuracy is improved, but device complexity deteriorates
Solution Approach 1:
A single waste liquid detector is designed to perform multiple detection functions by using different detection thresholds. The same sensor can detect both normal dripping conditions and overflow conditions by adjusting the volume threshold parameter. This multi-functionality eliminates the need for separate sensors for different detection purposes, reducing system complexity while maintaining detection accuracy.
Solution Approach 2:
The detection system uses parameter changes (threshold adjustment) rather than additional hardware to differentiate between various waste liquid conditions. By changing the detection threshold parameter, the single sensor can accurately detect both small amounts of normal dripping and large amounts of overflow, providing multiple detection capabilities without increasing device complexity.
Data Source
AI summary
A beverage forming method and system in which a carafe is positionable at a carafe receiving area of a beverage forming machine with a lid of the carafe in an open position or a closed position. The carafe may be positioned at the carafe receiving area in any one of multiple rotational positions within a range of 45 to 180 degrees, and the machine may detect whether the lid is open or not for any of the rotational positions. A drip tray may receive waste liquid into two different waste liquid receiving areas, and may detect the presence of liquid for different volumes received into the respective areas. Holes or other opening in the drip tray may be configured to receive liquid flowing down a side surface of a carafe when the liquid reaches a periphery of the carafe base.