Frozen Drink Maker Motor Protection Using Dynamic Temperature Control
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Solution Overview
Problem
Existing frozen drink makers lack adaptability and user-specific control over temperature and texture, leading to inconsistent product outcomes.
Innovation Solution
A drink maker system with a temperature sensor, cooling circuit, and controller that adjusts temperature based on preset recipes and user inputs, monitoring motor conditions to prevent damage and achieve desired textures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a preset recipe target temperature is used to control the drink product temperature, then the temperature control is simple and automatic, but the system lacks adaptability to user-specific preferences and conditions
Solution Approach 1:
The system dynamically adjusts the target temperature based on real-time motor current feedback. When motor current exceeds a threshold indicating excessive thickness, the controller automatically raises the target temperature to reduce viscosity, enabling the system to adapt to changing product conditions without user intervention
Solution Approach 2:
The system implements a feedback loop where motor current is continuously monitored during mixing. This current feedback is used to detect product thickness changes and trigger automatic target temperature adjustments, creating a closed-loop control system that adapts to product conditions
2Manufacturing precision
If the drink product is cooled to a lower temperature to achieve desired texture, then the product quality improves, but the drive motor current increases excessively which may cause motor damage
Solution Approach 1:
The system uses motor current as a feedback signal to monitor product thickness during mixing. When current exceeds a safe threshold, the controller detects the excessive thickness condition and responds by raising the target temperature to reduce viscosity, preventing motor damage while maintaining product quality
Solution Approach 2:
The target temperature is dynamically adjusted based on real-time motor current conditions. The system transitions from a static preset temperature to a dynamic temperature profile that adapts to product viscosity changes, balancing texture requirements with motor protection
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
Enables flexible temperature control and prevention of motor damage, ensuring user-specific and consistent product quality.
Implementation Method 1
a cooling circuit arranged to cool the drink product within the mixing vessel
Implementation Method 2
a temperature sensor arranged to measure a temperature associated with the drink product
Data Source
AI summary
A drink maker including a mixing vessel and a dasher, driven by a drive motor, arranged to mix the drink product. A cooling circuit is arranged to cool the drink product within the mixing vessel. A temperature sensor is arranged to detect a temperature of the drink product and output a temperature signal. A motor condition sensor is arranged to detect a motor condition associated with the drive motor and output a motor condition signal. A memory is arranged to store a first temperature value corresponding to a first target temperature and store a motor condition limit. A controller is arranged to: i) receive the temperature signal, ii) receive the motor condition signal, and ii) control the temperature associated with the drink product by controlling the cooling circuit based at least on the received temperature signal, the received motor condition signal, the first temperature value, and the motor condition limit.