Arched Radiating Antenna for Uniform Electromagnetic Wave Heating
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Solution Overview
Problem
Existing electromagnetic wave heating devices for thawing food suffer from non-uniform temperature distribution due to the edge effect of radiating antennas, leading to localized heating or ignition, and have high production costs.
Innovation Solution
The design includes a radiating antenna that arches towards the object to be processed, with a central and edge part configuration that divergently connects, reducing the edge effect and enhancing uniform wave distribution, while maintaining a low production cost by optimizing the antenna's dimensions and placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the radiating antenna is configured to at least cover one inner wall of the heating chamber, then the temperature uniformity of thawed food is improved, but the production cost increases and electromagnetic waves are concentrated at the peripheral edge causing local heating
Solution Approach 1:
The radiating antenna is designed with an arching curved structure that bows toward the object to be processed, replacing a flat linear configuration. This curvature redirects the electromagnetic wave propagation pattern, distributing energy more uniformly across the heating chamber while preventing concentration at peripheral edges, thereby achieving both cost-effectiveness and temperature uniformity
2Temperature
If the radiating antenna is configured to at least cover one inner wall of the heating chamber, then the temperature uniformity of thawed food is improved, but electromagnetic waves are concentrated at the peripheral edge causing local heating or ignition
Solution Approach 1:
The arching curved configuration of the radiating antenna modifies the electromagnetic wave distribution pattern by directing waves away from the peripheral edges toward the center and lower regions of the heating chamber. This curvature effectively eliminates the edge effect that causes harmful concentration of energy, preventing local heating and ignition risks while maintaining uniform thawing
3Ease of manufacture
If a conventional flat radiating antenna is used, then the production cost is reduced, but the electromagnetic wave distribution in the heating chamber becomes non-uniform
Solution Approach 1:
The patent employs a curved arching antenna structure that can be manufactured using standard forming techniques for conductive materials. The curvature is optimized to achieve uniform electromagnetic wave distribution throughout the heating chamber, particularly improving coverage in previously underheated regions, while remaining compatible with conventional manufacturing processes and material selections
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
This configuration achieves a more uniform distribution of electromagnetic waves, increasing energy density and distribution range, thereby preventing localized heating and reducing production costs, ensuring safer and more efficient thawing.
Implementation Method 1
a radiating antenna, disposed in the container body and electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal
Implementation Method 2
the heating chamber is configured to place an object to be processed
Data Source
AI summary
Provided is a heating device. The heating device includes a cylinder body, a door body, an electromagnetic generating module and a radiating antenna. A heating chamber having a pick-and-place opening is defined in the cylinder body, and the heating chamber is configured to place an object to be processed. The door body is disposed at the pick-and-place opening and configured to open and close the pick-and-place opening. The electromagnetic generating module is configured to generate an electromagnetic wave signal. The radiating antenna is disposed in the cylinder body and electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The radiating antenna is configured to arch in a direction close to the object to be processed so as to eliminate the influence of an edge effect on the distribution uniformity of the electromagnetic waves in the heating chamber, and increase the energy density and distribution range of the electromagnetic waves while solving the problem of the production cost and improving the distribution uniformity of the electromagnetic waves.