Heating device and refrigerator
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Solution Overview
Problem
Existing heating devices using electromagnetic waves for food thawing suffer from electromagnetic leakage, posing health risks due to incomplete shielding, which is exacerbated by gaps between the container and door bodies.
Innovation Solution
The heating device incorporates magnetic elements to ensure close electrical contact between the container and door bodies, forming a continuously conductive shielding body, and uses conductive connectors to maintain electrical connection even with gaps, reducing electromagnetic leakage and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electromagnetic waves are used for heating, then heating efficiency is improved, but electromagnetic radiation harm increases
Solution Approach 1:
The patent converts the harmful electromagnetic radiation into a beneficial shielding mechanism by using conductive materials to create an electromagnetic shield that reflects and absorbs stray electromagnetic waves, transforming the harmful radiation into a protective barrier that prevents leakage while maintaining heating efficiency
2Ease of manufacture
If gaps are left between container and door bodies, then ease of manufacture is improved, but electromagnetic shielding effectiveness deteriorates
Solution Approach 1:
The patent employs flexible conductive connectors such as conductive adhesive strips or elastic conductive sheets that can deform to fill gaps between the container body and door body, maintaining continuous electrical contact and effective electromagnetic shielding while accommodating manufacturing tolerances and assembly variations
3Reliability
If magnetic elements are added to ensure close contact, then electromagnetic shielding is improved, but device complexity increases
Solution Approach 1:
The patent integrates magnetic elements into existing door body or container body structures, allowing these components to serve dual functions: maintaining mechanical closure and providing electromagnetic shielding through close contact, thereby improving shielding effectiveness without significantly increasing overall device complexity
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 design effectively shields electromagnetic radiation, reducing health risks and improving the safety and efficiency of the heating process by minimizing electromagnetic leakage and ensuring uniform heating.
Implementation Method 1
magnetic elements, disposed on the door body or the container body and configured to enable the door body and the container body to attract each other
Implementation Method 2
an electromagnetic heating device, configured to generate electromagnetic waves into the heating cavity to heat the object to be processed in the heating cavity
Data Source
AI summary
Provided are a heating device and a refrigerator. The heating device includes: a cylinder body, in which a heating cavity is defined and configured to place an object to be processed, provided with a pick-and-place opening located on a front side of the cylinder body; a door body, configured to open and close the pick-and-place opening of the cylinder body; an electromagnetic heating device, configured to generate electromagnetic waves into the heating cavity to heat the object to be processed; and magnetic elements, disposed on the door body or the cylinder body and configured to enable the door body and the cylinder body to attract each other, so that when the door body is in a closed state in which the door body seals the pick-and-place opening, the door body and the cylinder body are in close electrical contact, thereby forming a continuously conductive shielding body. By disposing the magnetic elements, on the one hand, the size of a gap between the door body and the cylinder body is reduced, and the amount of electromagnetic leakage is reduced; and on the other hand, it facilitates the door body and the cylinder body forming a continuously conductive shielding body to prevent electromagnetic waves from being emitted through the gap that may exist between the door body and the cylinder body, thereby effectively shielding the electromagnetic radiation and eliminating the harm of the electromagnetic radiation to the human body.