Blender Motor Control With Zero-Cross Pattern Switching
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Solution Overview
Problem
Current food blenders offer limited preset functions, which do not meet the diverse needs of users, and often result in a complex user experience due to overly complicated interfaces.
Innovation Solution
A motorized crushing apparatus with a flexible control system, including a zero voltage detector, manual switch, motor driver, motor, and controller, that allows users to select from multiple crushing patterns and adjust the motor's operation accordingly, enabling precise control over ice crushing and other tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple crushing patterns and functions are added to meet diverse user needs, then the versatility and functionality of the blender are improved, but the interface complexity and ease of operation deteriorate
Solution Approach 1:
The blender system automatically detects the material type through sensors and autonomously selects the appropriate crushing pattern without requiring manual intervention from the user. The system serves itself by making intelligent decisions based on detected parameters, eliminating the need for complex user interfaces while maintaining high versatility.
Solution Approach 2:
The system dynamically adjusts crushing parameters such as speed, duration, and intensity based on the detected material properties. By changing operational parameters automatically rather than providing multiple manual settings, the system achieves versatility without complicating the user interface.
2Extent of automation
If automatic material detection and adaptive control features are added, then the intelligence and automation level are improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical adjustment mechanisms with electronic sensors and digital control systems. Material detection is achieved through optical or capacitive sensors rather than mechanical probes, and adaptive control is implemented through microcontroller-based algorithms rather than mechanical linkages, reducing overall system complexity despite increased automation.
Solution Approach 2:
The control system performs multiple functions including material detection, pattern selection, parameter adjustment, and operation monitoring within a single integrated unit. This multi-functional approach avoids the need for separate dedicated components for each function, thereby managing device complexity while achieving high automation levels.
Data Source
AI summary
A motorized crushing apparatus includes a zero voltage detector, a manual switch, a motor driver, a motor and a controller. The zero voltage detector is coupled to an AC power source. When a varying voltage of the AC power source is below zero, the zero voltage detector generates a first signal. When the varying voltage of the AC power source is above zero, the zero voltage detector generates a non-zero signal. The manual switch is provided for a user to select a crushing pattern from multiple candidate crushing patterns. The controller is coupled to the zero voltage detector, the manual switch and the motor driver. The controller generates a control signal corresponding to the selected crushing pattern to alternatively turn on and turn off the motor driver under a schedule pattern.