Induction Cooker Temperature Sensor Mount with Flexible Diaphragm
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Solution Overview
Problem
Induction cookers have limitations in temperature accuracy, versatility, user programmability, reliability, longevity, and maintenance compared to prior art.
Innovation Solution
An induction cooker design featuring a ceramic glass cooking surface with integrated temperature sensing, a microprocessor control unit, and advanced cooling systems, along with user interface and communication protocols for improved temperature control and programmability, and a replaceable cooking surface for enhanced serviceability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a coil of copper wire is placed beneath a glass surface to heat the cooking vessel, then induction heating capability is achieved, but radiant heat from the vessel heats the glass and components within the induction cooker causing reliability and longevity issues
Solution Approach 1:
The patent divides the cooking surface into modular sections with individual heating zones, allowing independent temperature control for each zone. This segmentation prevents excessive heat accumulation in any single area, reducing thermal stress on underlying components and improving overall system reliability.
Solution Approach 2:
The patent introduces an intermediary cooling system between the heating coil and the glass surface, including heat sinks and thermal management components. This intermediary layer absorbs and dissipates radiant heat before it reaches sensitive electronic components, protecting them from thermal damage while maintaining heating effectiveness.
2Measurement precision
If temperature sensing is integrated into the cooking surface, then temperature accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent designs the control unit to perform multiple functions: it manages heating zones, processes temperature sensor data, controls cooling systems, and interfaces with user inputs. By consolidating these functions into a single microprocessor-based controller, the system achieves high temperature accuracy without proportionally increasing overall device complexity.
Solution Approach 2:
The patent implements a feedback control system where temperature sensors continuously monitor cooking surface temperature, and the control unit adjusts heating power in real-time based on this feedback. This closed-loop control achieves precise temperature accuracy while using standard control algorithms that don't significantly complicate the system.
3Reliability
If advanced cooling systems are implemented, then reliability is enhanced, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent designs a passive cooling system that utilizes natural convection currents and heat sink geometry to dissipate heat without requiring active control mechanisms. The cooling channels are strategically positioned to maximize heat dissipation through natural air flow, providing reliable thermal management through self-regulating physics rather than complex controlled systems.
Solution Approach 2:
The patent combines the cooling function with the structural design of the housing and support components. Heat sinks are integrated into existing structural elements, and cooling channels are formed within the housing itself rather than as separate added components. This merging approach enhances reliability through effective cooling while minimizing the increase in device complexity.
4Ease of repair
If the cooking surface is made replaceable, then ease of repair and maintenance is improved, but the device complexity increases
Solution Approach 1:
The patent designs the cooking surface as a separate, removable module that can be independently replaced without disassembling the entire appliance. This segmentation allows users to replace only the cooking surface when needed, significantly improving ease of repair and maintenance while adding minimal complexity through standardized mounting interfaces.
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 solution provides improved cooking temperature accuracy, enhanced reliability, and programmability, while also addressing maintenance and longevity issues through advanced cooling and user-friendly interface features.
Implementation Method 1
A coil of copper wire is placed beneath a glass surface that supports the cooking vessel and an alternating electric current flows through the coil. This produces a magnetic field which induces an electric current in the cooking vessel. Current flowing in the vessel produces resistive heating.
Implementation Method 2
Current flowing in the vessel produces resistive heating.
Implementation Method 3
The induction cooker also features a cooling fan that moves air across the induction coil and through the housing.
Implementation Method 4
A temperature sensor is integrated into the cooking surface and communicates with a microprocessor control unit.
Data Source
AI summary
An induction cooker has a temperature sensor mount that includes a reciprocating sensor holder and a flexible diaphragm.