Offset Electrode Spark Gap for Arc Generation
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Solution Overview
Problem
Existing spark gaps in electric arc generating devices face issues with uncontrolled discharges to metal arms, leading to energy loss and increased wear of electrodes, which reduces device performance and requires miniaturization challenges.
Innovation Solution
The spark gap design features offset electrodes and a single connecting arm, with one electrode inclined and the other having a concave surface, surrounded by a dielectric fluid within a sealed enclosure, to minimize the risk of arcs deflecting towards the connecting arm and control wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electrodes are positioned close to metal arms for miniaturization, then device size is reduced, but risk of uncontrolled discharge increases
Solution Approach 1:
The electrode is positioned asymmetrically within the spark gap enclosure, specifically offset from the metal arms. This asymmetric arrangement creates a geometric configuration where the electrode end is closer to one metal arm than the other, deliberately designing the discharge path to favor the intended electrode-to-electrode arc while maintaining miniaturization. The asymmetry ensures that even at reduced scale, the electric field distribution prevents uncontrolled discharge to metal arms.
2Volume of moving object
If electrodes are positioned close to metal arms, then device size is reduced, but energy loss increases
Solution Approach 1:
The asymmetric positioning of the electrode relative to the metal arms creates a controlled electric field distribution that directs the discharge energy primarily between the electrodes rather than allowing energy dissipation through uncontrolled arcs to the metal arms. This geometric asymmetry ensures efficient energy utilization even in a miniaturized configuration.
3Volume of moving object
If electrodes are positioned close to metal arms, then device size is reduced, but electrode wear increases
Solution Approach 1:
The asymmetric arrangement positions the electrode such that the discharge is concentrated on a specific portion of the electrode end. This controlled positioning, combined with the offset from metal arms, manages the wear distribution to extend electrode life while maintaining the compact device size.
4Reliability
If electrode offset is increased to prevent discharge to arms, then discharge control improves, but device complexity increases
Solution Approach 1:
The asymmetric electrode positioning is implemented through a straightforward geometric offset within the cylindrical enclosure, avoiding complex mechanisms. The electrode is simply positioned at a predetermined offset distance from the metal arms, achieving reliable discharge control through this single geometric parameter rather than through complex adjustable mechanisms.
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 significantly reduces the risk of uncontrolled discharges and extends the service life of the spark gap by evenly distributing wear across the concave surface, maintaining optimal electrode spacing and preventing energy loss.
Implementation Method 1
a membrane (18) surrounding the first electrode (2), the second electrode (6) and the connecting arm (10) so as to form a sealed enclosure (20) around a space between the first electrode (2) and the second electrode (6). The enclosure (20) is filled with a dielectric liquid.
Implementation Method 2
By then causing the capacitors to rapidly discharge through a pair of electrodes defining a discharge gap, an acoustic wave is created.
Implementation Method 3
a spark gap of an electric arc generation device
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a spark-gap comprising: - a first body supporting a first electrode mounting (12) connected to a first electrode (2) having a first electrode end (4); - a second body supporting a second electrode mounting (14) connected to a second electrode (6) placed so as to face the first electrode end (4); and - a connection arm (10) connecting the first body to the second body. The first body and the second body have a generally cylindrical outer shape and are aligned along a common longitudinal axis (22). The first electrode end (4) is offset, relative to the longitudinal axis (22), toward the side opposite the connection arm (10). The invention also relates to an electric arc generation device comprising such a spark-gap.