Microwave-Reflective Food Processor Pan for Even Heating
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Solution Overview
Problem
Existing food processors with integrated heat sources suffer from poor heat distribution and the risk of hazardous short-circuiting due to electrical conduction, requiring prolonged and expensive cooking times.
Innovation Solution
A multifunctional automatic food processor incorporating a microwave and induction heat source, with a hemispherical bottom pan and top pan design for efficient microwave reflection and a detachable bottom pan with induction coils, allowing for simultaneous stirring, blending, grinding, and cooking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If electrical conduction heat source is used at bottom of vessel, then heating function is provided, but heat distribution is poor and risk of short-circuiting increases
Solution Approach 1:
The patent replaces the electrical conduction heating system with a microwave radiation-based heating system. The microwave generator emits electromagnetic waves that directly heat the food material through dielectric heating, eliminating the need for electrical contact with the vessel bottom and thus preventing short-circuiting while providing uniform heat distribution throughout the material.
2Temperature
If electrical conduction heat source is used, then heating function is provided, but cooking time is prolonged and energy cost increases
Solution Approach 1:
The patent substitutes conventional electrical resistance heating with microwave dielectric heating. Microwaves penetrate the food material and generate heat throughout the volume simultaneously rather than conducting heat from the bottom surface, dramatically reducing cooking time and energy consumption while maintaining effective heating function.
3Temperature
If heat source is located at bottom of vessel, then heating function is provided, but heat distribution throughout liquid or food is poor
Solution Approach 1:
The patent replaces bottom-surface electrical heating with volumetric microwave heating. The microwave generator produces electromagnetic waves that penetrate and heat the entire volume of food or liquid simultaneously, achieving uniform heat distribution throughout the material rather than creating temperature gradients from bottom to top.
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 rapid and even heat distribution, reducing cooking time by a quarter while preventing leakage and minimizing the risk of electrical hazards.
Implementation Method 1
the top pan is coupled with at least one microwave producing device, such as a magnetron, that acts as a source of microwaves, thereby allowing contents of the bottom pan to be heated
Implementation Method 2
a hemispherical bottom pan and top pan design for efficient microwave reflection
Implementation Method 3
a detachable bottom pan with induction coils, allowing for simultaneous stirring, blending, grinding, and cooking
Data Source
AI summary
A multifunctional food processor is disclosed, comprising: a grinder housing with a mechanism for driving a grinding blade; and a bottom pan that is detachably attached to grinder housing, and incorporates the grinding blade. Bottom pan, when attached to grinder housing, gets coupled to the mechanism for driving the grinding blade. A top pan is provided to cover the bottom pan, and is coupled with at least one magnetron or microwave producing device that acts as a source of microwaves for heating contents of the bottom pan. The bottom pan also incorporates one or more induction coils to heat the contents of the bottom pan by induction. The magnetron or microwave producing device and the induction coils allow contents of the bottom pan to be heated in addition to any one or more of stirring, blending and grinding.