Range Hood Temperature Sensing for Cooktop Overheat Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cook top appliances lack effective temperature monitoring and notification systems, particularly for non-visual indication of heating element status and temperature levels, leading to potential food burning, appliance damage, and safety hazards, especially when used with varied configurations and types of heating elements.
Innovation Solution
A range hood equipped with temperature sensors positioned above the cook top to detect heating element, utensil, or food temperatures, providing visual and audible warnings, and potentially remedial responses when predetermined temperature levels are exceeded, accommodating various cook top configurations through adjustable and multiple sensor implementations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual indicators are provided on the cook top surface, then temperature monitoring capability is improved, but the indicators are small and hard to perceive over wide viewing angles
Solution Approach 1:
The patent relocates the temperature indicator from the cook top surface (2D plane) to the range hood structure (3D space above the cook top). This dimensional change allows the indicator to be positioned where it can be viewed from multiple angles and distances, solving the visibility problem while maintaining temperature monitoring accuracy.
Solution Approach 2:
The patent introduces a light-sensitive switch as an intermediary between the temperature sensor and the visual indicator. This intermediary converts temperature data into visual signals that can be displayed in a more visible location, bridging the gap between accurate measurement and effective communication to the user.
2Adaptability or versatility
If temperature monitoring is implemented for all heating element configurations, then temperature detection coverage is improved, but device complexity increases due to varying cook top configurations
Solution Approach 1:
The patent designs the range hood with a universal temperature monitoring system that can accommodate various cook top configurations (gas, electric, induction) and heating element arrangements (4, 6, or more elements). The system uses multiple temperature sensors that can be selectively activated based on the detected cook top type, providing universal adaptability without requiring completely different systems for each configuration.
Solution Approach 2:
The patent implements a dynamic sensor activation system where the range hood can selectively enable or disable specific temperature sensors based on the detected cook top configuration. This dynamic adaptation allows the system to maintain full monitoring capability for the active heating elements while ignoring inactive ones, reducing unnecessary complexity.
3Measurement precision
If multiple temperature sensors are used to cover all heating elements, then temperature monitoring accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements a selective sensor activation strategy where not all temperature sensors are continuously active. Instead, the system activates only the sensors corresponding to the detected cook top configuration and currently active heating elements. This partial action approach maintains monitoring accuracy for relevant areas while reducing the effective sensor count, thereby lowering manufacturing and operational costs.
4Reliability
If temperature monitoring is added to the range hood, then safety and notification capability are improved, but device complexity increases
Solution Approach 1:
The patent integrates the temperature monitoring system with the existing range hood structure and control mechanisms. The temperature sensors, light-sensitive switches, and visual indicators are incorporated into the range hood's housing and control circuitry, merging multiple functions (ventilation, lighting, temperature monitoring, and alerting) into a single integrated system. This reduces overall complexity compared to having separate monitoring systems.
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 effectively monitors and alerts users to undesirable temperature conditions, preventing accidents and appliance damage by providing customizable and comprehensive temperature monitoring across different cook top configurations.
Implementation Method 1
at least one temperature sensor positioned above the cook top and configured for detecting the temperature of the at least one heating element of the cook top, a cooking utensil on the heating element, a food in the utensil on the cook top
Data Source
AI summary
A range hood with features for monitoring the temperature of a cook top located below it is provided. In one example, the range hood includes one or more temperature sensors positioned over the cook top for measuring temperature of the heating elements below. If the measured temperatures(s) exceeds one or more predetermined temperature levels, either with or without a time delay, a notification and/or other remedial response is provided to a user of the appliance. The notification can be, for example, a visual warning projected onto the cook top and/or an audible alarm. Different warnings can be provided based on different temperature levels as measured by the temperature sensors.