Ultra-thin heating device
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Solution Overview
Problem
Existing food heating devices are bulky and inconvenient for storage, and they fail to maintain food at a constant temperature, leading to a degradation in food taste, especially for individuals who need to reheat meals after working overtime.
Innovation Solution
An ultra-thin heating device comprising soft upper and lower heating pads, electrothermal sheets, and a power supply, allowing for folding or rolling for storage and featuring a marking layer, bumps, nano-coatings, a tableware detection unit, temperature control, and a heat insulating layer to maintain efficient and safe heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional metal or glass heating devices are used, then heating function is achieved, but storage space is excessive and convenience is poor
Solution Approach 1:
The heating device uses flexible silicone rubber material for both the upper and lower heating pads, allowing them to be folded or rolled up when not in use. This flexible film structure replaces traditional rigid metal or glass materials, enabling compact storage while maintaining the heating function through the integrated electrothermal sheet.
2Reliability
If food is not maintained at constant temperature, then storage space is saved, but food taste deteriorates
Solution Approach 1:
The power supply incorporates a temperature detection unit that continuously monitors the heating temperature and provides feedback to the control unit. The control unit adjusts the power output based on this feedback to maintain a constant temperature, ensuring food taste quality is preserved throughout the meal.
3Power
If electrothermal sheet is placed between heating pads, then heating efficiency is improved, but temperature control precision is challenged
Solution Approach 1:
The system dynamically changes the power supply parameters based on temperature detection feedback. The control unit adjusts electrical parameters to the electrothermal sheet to maintain precise temperature control while preserving heating efficiency, resolving the contradiction between power output and temperature precision.
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 ultra-thin heating device effectively maintains food temperature, saves storage space, prevents overheating, and extends the lifespan of components through efficient resource use and protection from spills, ensuring convenient and efficient meal reheating.
Implementation Method 1
the power supply provides electric power to the at least one electrothermal sheet to heat the food
Implementation Method 2
a heat insulating layer is provided between the electrothermal sheet and the lower heating pad
Data Source
AI summary
An ultra-thin heating device includes an upper heating pad, a lower heating pad, at least one electric heating piece and a power supply. The electric heating piece is installed at a preset position between the upper heating pad and the lower heating pad. The electrothermal sheet is electrically connected with the power supply. The upper heating pad and the lower heating pad are made of soft material. When a food needs to be heated, the food is placed on the preset position of the upper heating pad corresponding to the at least one electrothermal sheet, and the power supply provides electric power to the at least one electrothermal sheet to heat the food. Because the upper heating pad and the lower heating pad are made of soft material, when not in use, the ultra-thin heating device can be folded or rolled up for storage.