Beverage Machine Off-Set Actuator Design for Liquid Exposure Control
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Solution Overview
Problem
Existing beverage preparation machines face inefficiencies in handling ingredient capsules and water delivery, particularly in terms of heat management, power consumption, and the need for complex mechanisms to handle varying capsule sizes and ingredient types.
Innovation Solution
A beverage preparation machine with a centrifugal processing unit that uses an off-set actuator to reduce exposure to liquid, incorporates a water guide without a pump, and allows for manual insertion and removal of capsules, enabling efficient mixing of water with flavoring ingredients through a movable chamber system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pump is used to deliver water through the centrifugal processing unit, then water delivery control is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent removes the pump from the water delivery system entirely. Water is delivered to the centrifugal processing unit through gravity and pressure from the water reservoir, eliminating the need for mechanical pumping components while maintaining adequate water flow control for beverage preparation.
Solution Approach 2:
The system uses the natural properties of water (gravity flow and reservoir pressure) to deliver water through the processing unit without requiring external mechanical assistance. The water delivery mechanism serves itself by utilizing the inherent potential energy of the water column in the reservoir.
2Device complexity
If the actuator is positioned close to the centrifugal processing unit for direct coupling, then mechanical transmission is simplified, but exposure to liquid and steam increases
Solution Approach 1:
The actuator is separated from the centrifugal processing unit into a different spatial zone. The actuator is positioned in the upper portion of the housing away from the liquid processing area, while the centrifugal unit remains in the lower portion. This segmentation allows mechanical coupling through a transmission mechanism while physically isolating the actuator from harmful liquid and steam exposure.
Solution Approach 2:
A mechanical transmission mechanism acts as an intermediary between the actuator and the centrifugal processing unit. This intermediary allows the actuator to drive the centrifugal unit without direct contact, transmitting rotational force through gears or belts while maintaining physical separation and protecting the actuator from liquid exposure.
3Adaptability or versatility
If complex mechanisms are used to handle varying capsule sizes and ingredient types, then adaptability is improved, but device complexity increases
Solution Approach 1:
The centrifugal processing unit is designed with a universal chamber that can accommodate different capsule sizes and ingredient types without requiring mechanism changes. The chamber geometry and centrifugal force application method remain the same regardless of what is being processed, allowing one mechanism to serve multiple functions for various beverage preparations.
Solution Approach 2:
The system handles different capsule sizes and ingredient types by adjusting operational parameters such as centrifugal speed, water flow rate, and processing time rather than changing mechanical components. The control system modifies these parameters to optimize extraction for different ingredient densities and capsule configurations.
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
The machine efficiently prepares beverages by reducing power consumption and mechanical complexity, while accommodating various capsule sizes and types, ensuring easy operation and effective ingredient extraction without specialized tools or knowledge.
Implementation Method 1
centrifugal processing unit that uses an off-set actuator... enabling efficient mixing of water with flavoring ingredients through a movable chamber system
Data Source
AI summary
A machine (1) for preparing a beverage (3) has a beverage processing unit (10, 20) formed of a first processing unit member (10) and a second processing unit member (20) that delimit a chamber (21) and that are movable between a distant configuration in which a flavouring ingredient (2) is received in the chamber (21) and a proximate configuration in which the flavouring ingredient (2) is held and mixed with water (4) in the chamber (21). The machine includes: a water source for delivering the water (4) towards the processing unit (10, 20); a water guide (30) for guiding the water (4) between the water source and the chamber (21); a support structure (70), such as a frame, having a base (72) that is stationary during beverage preparation, the processing unit (10, 20) being rotatably mounted to the support structure (70) about a processing unit axis (71′); and an actuator supported by the support structure (70) that has a driving output member (61) rotating about an output axis (61′). The output member (61) is coupled to the processing unit (10, 20) for driving the processing unit (10,20) in rotation. The output member (61) is coupled to the processing unit (10, 20) by a transmission (611, 612, 62) such that the output axis (61′) is off-set relative to the processing unit axis (71′).