Programmable Induction Cooktop with Thermal Fuse and Ridge
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Solution Overview
Problem
Conventional countertop induction cooktops have limited functionality and are not programmable, lacking advanced features such as multiple cooking stages, precise temperature control, and safety mechanisms, which restrict their usability and safety.
Innovation Solution
A programmable countertop induction cooktop system with a controller that allows users to input and execute multistage recipes, featuring precise temperature adjustments in 10° F increments, a thermal fuse for safety, and an extended glass surface with a side wall ridge to prevent liquid entry, along with an angled control panel for improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional induction cooktops are used, then basic cooking function is provided, but functionality is limited and not programmable
Solution Approach 1:
The induction cooktop is designed to perform multiple cooking functions including boiling, simmering, sautéing, and baking through a single device. The system incorporates multiple heating zones that can operate independently or together, and includes programmable settings for various cooking modes, making one device replace multiple specialized cooking appliances.
Solution Approach 2:
The cooking surface is divided into multiple independent heating zones, each capable of being controlled separately with its own temperature and timing settings. This segmentation allows different cooking processes to occur simultaneously on different zones, increasing overall functionality without requiring multiple separate devices.
2Measurement precision
If conventional induction cooktops are used, then simple operation is maintained, but precise temperature control is lacking
Solution Approach 1:
The system provides continuous variable control over temperature parameters, allowing users to set precise temperatures in small increments. The programmable timer allows for precise time control of cooking stages. These parameter adjustments enable precise temperature control while maintaining ease of operation through digital interfaces and preset modes.
Solution Approach 2:
The cooktop incorporates temperature sensors that continuously monitor the heating zones and provide feedback to the control system. This feedback mechanism allows the system to maintain precise temperature control by automatically adjusting power delivery based on actual temperature readings, ensuring accuracy without requiring manual intervention.
3Reliability
If conventional induction cooktops are used, then basic safety is provided, but advanced safety mechanisms are missing
Solution Approach 1:
The system incorporates a thermal fuse that activates before dangerous temperature levels can be reached, providing a safety buffer. The programmable timer automatically shuts off heating after predetermined time periods, preventing overheating and dry cooking conditions. These beforehand safety measures prevent hazards before they occur without requiring complex real-time monitoring systems.
Solution Approach 2:
The cooktop includes automatic safety features that operate without user intervention, such as over-temperature protection, automatic shut-off timers, and error detection systems. These self-service safety mechanisms monitor system conditions and take corrective action automatically, providing advanced safety without adding complexity to user operation.
4Object-affected harmful factors
If extended glass surface is used, then liquid entry prevention is improved, but manufacturing complexity increases
Solution Approach 1:
The control panel is positioned at an angle rather than flush with the cooking surface, creating an asymmetric design that naturally directs liquids away from the control electronics. The side wall ridge creates an asymmetric barrier that prevents liquid flow toward vulnerable areas, protecting against liquid ingress without requiring complex sealing mechanisms.
Solution Approach 2:
The extended glass surface acts as an intermediary barrier between liquids and the underlying electronics. The side wall ridge serves as a intermediate structural element that creates a physical barrier, redirecting liquid flow away from sensitive components. These intermediary structures protect against liquid ingress while maintaining a relatively simple manufacturing process.
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 advanced cooking capabilities, including programmable cooking stages, precise temperature control, and enhanced safety features, making the cooktop more versatile and user-friendly while preventing liquid ingress and ensuring safe operation.
Implementation Method 1
Induction technology works by creating a magnetic field that passes through, e.g., magnetic cookware (iron or steel), generating heat. Such induction technology applies an oscillating current to an electromagnet to produce an oscillating magnetic field.
Implementation Method 2
This magnetic field passes through the magnetic cookware, which generates heat in the cookware itself instead of the surface of a cooktop unit.
Data Source
AI summary
A system and method for induction cooking using an induction cooking unit, an interface adapted to receive, store, and execute a plurality of instructions of a multistage programmable recipe using the induction cooking unit, a power supply, a controller coupled to said power supply, said interface, and said induction cooking unit.