Electrode Layout for Electromagnetic Drying of Liquid-Coated Media
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Solution Overview
Problem
Existing drying devices inefficiently transmit electromagnetic waves to liquid ejected onto a medium, desiring improved drying efficiency.
Innovation Solution
A drying device with an electromagnetic wave generation section comprising a first electrode on one surface of the medium and a second electrode on the opposite surface, connected by a conductor and transmission line, to efficiently generate and transmit electromagnetic waves for drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high-frequency voltage is supplied between the first electrode and the second electrode to generate electromagnetic waves, then the medium can be dried, but the electromagnetic wave transmission efficiency to the liquid is insufficient
Solution Approach 1:
The patent transitions from a conventional single-sided electrode configuration to a three-dimensional arrangement where the second electrode surrounds the first electrode in plan view and is positioned on the opposite surface of the medium. This spatial dimensionality change enables electromagnetic waves to be transmitted from both sides of the medium simultaneously, significantly improving transmission efficiency and drying effectiveness.
Solution Approach 2:
The second electrode is configured to surround at least a portion of the first electrode in plan view, creating a nested geometric relationship. This nested arrangement concentrates the electromagnetic field within the region bounded by the electrodes, enhancing the field intensity and transmission efficiency to the liquid on the medium.
2Loss of energy
If the second electrode is disposed to surround the first electrode in plan view from the first direction, then electromagnetic wave transmission efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The second electrode serves multiple functions simultaneously: it acts as an electromagnetic wave generation electrode, surrounds the first electrode to concentrate the field, and is positioned on the opposite surface to enable bidirectional transmission. This multi-functionality reduces the need for additional components, thereby limiting the increase in 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
Enhances drying efficiency by efficiently transmitting electromagnetic waves to the liquid, reducing electromagnetic wave intensity at a distance, and expanding the heating region for improved drying.
Implementation Method 1
an electromagnetic wave generation section that dries a medium onto which a liquid is ejected by generating an electromagnetic wave in response to application of a high-frequency voltage
Implementation Method 2
a medium onto which the liquid was ejected can be dried
Data Source
AI summary
The drying device includes an electromagnetic wave generation section that dries a medium onto which a liquid is ejected by generating an electromagnetic wave in response to application of a high-frequency voltage. The electromagnetic wave generation section includes a first electrode, a second electrode disposed so as to surround at least a portion of the first electrode in plan view from a first direction, a first conductor including a coil and electrically coupling the first electrode and a transmission line, which is configured to transmit a high-frequency voltage, and a second conductor electrically coupling the transmission line and the second electrode. The first electrode is provided on a first surface side of the medium. The second electrode is provided at least on a second surface side of the medium opposite to the first surface.