Food Processor Anti-Overflow Detection for Foam Control During Heating
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Solution Overview
Problem
The latest generation of wall-breaking cooking machines prone to generating foam during blending and heating, which can overflow from the cup, affecting the performance of the food processor.
Innovation Solution
A food processor with an anti-overflow metal inner cover that detects foam formation and controls the heating device to prevent overflow, featuring a metal ring extending into the stirring cup and connected to the main control board to stop heating when foam is detected, and resumes heating when foam disappears.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating device is used to heat food in the stirring cup, then heating function is improved, but foam overflow problem occurs
Solution Approach 1:
The patent implements a feedback control mechanism where the anti-overflow detecting element continuously monitors the foam level in the stirring cup and sends signals to the main control board. When foam reaches the detecting element, the system automatically stops heating to prevent overflow. This closed-loop feedback system resolves the contradiction by dynamically adjusting the heating process based on real-time foam detection, allowing effective heating while preventing harmful overflow.
2Object-generated harmful factors
If anti-overflow detecting element is added to detect foam, then foam overflow is prevented, but device complexity increases
Solution Approach 1:
The patent introduces an anti-overflow detecting element as an intermediary component that mediates between the heating process and the control system. This detecting element, positioned at the inner surface of the upper cover, serves as a simple yet effective sensor that detects foam presence without requiring complex sensing mechanisms. The intermediary detector enables automated overflow prevention while maintaining relatively simple device architecture.
3Measurement precision
If metal inner cover is used as anti-overflow detecting element, then signal accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs a metal inner cover that replicates or copies the functional requirements of a complex foam detection sensor. The metal cover, with its specific electrical properties, serves as both a structural component and a detection element. By using the metal cover itself as the sensing element rather than adding a separate complex sensor, the system achieves accurate foam detection while simplifying the manufacturing process through component integration.
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
Prevents foam overflow by accurately detecting foam formation at the inner surface of the upper cover, improving signal accuracy and maintaining consistent heating without modifying the existing food processor structure.
Implementation Method 1
the heating assembly is a resistance heating assembly, the resistance heating assembly is defined at a lower surface of the heat conducting plate
Implementation Method 2
the heating assembly is an electromagnetic heating assembly, the heat conducting plate is a magnetic conducting plate, and the electromagnetic heating assembly faces the magnetic conducting plate
Data Source
AI summary
The present disclosure provides a food processor which includes a main engine, a stirring cup, and a cup cover assembly. A main control board is defined in the main engine and the stirring cup is mounted on the main engine. The cup cover assembly covers the stirring cup and the bottom of the stirring cup defines a heating device which electrically is connected to the main control board. The cup cover assembly includes an upper cover and an inner surface of the upper cover defines an anti-overflow detecting element, and the anti-overflow detecting element electrically is connected to the main control board. When a part of foam contacts the anti-overflow detecting element, the main control board controls the heating device to stop heating and no foam is generated, therefore preventing the foam liquid from overflowing the stirring cup.