Spark Gap Switch Electrode Protrusion for Stable Discharge
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Solution Overview
Problem
Conventional spark gap switches for high power ultra-wideband electromagnetic wave radiation often experience unstable discharge, leading to reduced output power and deformed radiation patterns due to discharge occurring at random positions rather than central electrode areas, and a lack of sufficient surface insulation distance, causing surface discharges on the casing.
Innovation Solution
A spark gap switch design featuring electrodes with central electrode protrusions and assisting members made of durable materials, along with a cylindrical casing and adjustable brackets, ensures stabilized discharge on central electrode portions by increasing the surface insulation distance and preventing surface discharges on the casing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the electrode surface area is increased to enhance capacitance, then the energy storage capability is improved, but discharge becomes unstable and occurs at random positions instead of central portions
Solution Approach 1:
The patent applies local quality by creating a protrusion at the central portion of the electrode surface. This local structural modification concentrates the electric field at the protrusion tip, ensuring that discharge consistently occurs at this specific location rather than at random positions on the electrode surface. The protrusion acts as a localized field enhancement point that maintains discharge stability while the overall electrode area remains large for energy storage.
2Use of energy by moving object
If the distance between electrodes is reduced to increase capacitance, then the energy storage capability is improved, but the surface insulation distance becomes insufficient causing surface discharges on the casing
Solution Approach 1:
The patent solves the insulation problem by transitioning from a two-dimensional planar electrode design to a three-dimensional structure with protrusions. The protrusions extend along the axial direction, effectively increasing the insulation distance in the radial dimension without requiring an increase in the overall electrode separation distance. This dimensional change allows sufficient insulation clearance to prevent surface discharges on the casing while maintaining the electrode proximity needed for high capacitance.
3Use of energy by moving object
If the electrode surface area is increased to enhance capacitance, then the energy storage capability is improved, but the radiation pattern becomes deformed due to unstable discharge
Solution Approach 1:
The protrusion structure at the central electrode portion creates a localized field concentration point that ensures consistent discharge initiation. This local modification stabilizes the discharge process, which in turn produces a stable and well-defined radiation pattern. The symmetric arrangement of protrusions maintains the overall geometric symmetry, preventing radiation pattern deformation while the large electrode area preserves energy storage capability.
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 design stabilizes discharge characteristics, enhancing the output power and radiation pattern of electromagnetic waves, preventing surface discharges and maintaining performance even in repeated use.
Implementation Method 1
an electrode protrusion provided on a central portion of at least either of the electrodes, the electrode protrusion inducing stabilized discharge
Implementation Method 2
a spark gap switch for high power ultra-wideband electromagnetic wave radiation which is configured such that it can have stabilized discharge characteristics that allow discharge to occur on central portions of electrodes
Data Source
AI summary
A spark gap switch for high power ultra-wideband electromagnetic wave radiation is provided. The spark gap switch includes a casing, electrodes, brackets and an electrode protrusion. Openings are formed in respective opposite ends of the casing. The electrodes are installed in the casing at positions spaced apart from each other in such a way that the electrodes face each other and are disposed inside the openings. The brackets are installed in the respective openings of the casing. The brackets fasten rear ends of the corresponding electrodes to the casing. The electrode protrusion is provided on a central portion of at least either of the electrodes to induce stabilized discharge. The maximum diameter of the electrodes is smaller than the inner diameter of the casing so that the circumferential outer surfaces of the electrodes do not make contact with the circumferential inner surface of the casing.