L-Shaped Booster Circuit Joint Fitting for Discharge Prevention
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Solution Overview
Problem
The existing booster circuits in voltage generators, such as those used in electron guns and electron microscopes, face challenges in manufacturing and discharge prevention due to the difficulty in accommodating component connecting portions and lead forming portions within the space between capacitor end electrodes and high-voltage output cables, leading to potential discharge issues.
Innovation Solution
A booster circuit design featuring a conductive L-shaped joint fitting that fits within the substrate's surface area, connecting capacitors and diodes at the substrate ends with a specific L-shaped joint fitting that includes a plate-shaped bottom surface and a bent back surface, allowing the lead forming portions to be contained within the joint fitting's area, thereby preventing discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the component connecting portion and lead forming portion are accommodated in the space between capacitor end electrode and high-voltage output cable, then discharge is prevented, but manufacturing becomes difficult
Solution Approach 1:
The component connecting portion and lead forming portion are nested within the projection area of the L-shaped joint fitting. The joint fitting acts as a container that houses these critical components, ensuring they are positioned within the safe space between the capacitor end electrode and high-voltage output cable while simplifying the manufacturing process through integrated positioning
Solution Approach 2:
The L-shaped joint fitting serves as an intermediary component that mediates between the capacitor end electrode and the high-voltage output cable. It provides a structured interface that automatically positions the component connecting portion and lead forming portion in the correct location, preventing discharge while facilitating easy assembly
2Reliability
If the capacitor end electrode diameter is matched to the high-voltage output cable diameter, then discharge is prevented, but manufacturing becomes difficult
Solution Approach 1:
The invention changes the geometric parameters of the joint fitting (L-shape with specific projection area) to create a universal interface that can accommodate different cable diameters. This parameter optimization allows the component connecting portion to be positioned correctly regardless of the specific cable size, preventing discharge while maintaining manufacturing ease
3Reliability
If insulation tolerance is increased to prevent discharge, then discharge is prevented, but the voltage generator size increases
Solution Approach 1:
The L-shaped joint fitting utilizes three-dimensional space optimization by extending in multiple directions (L-shape). This dimensional approach allows the component connecting portion and lead forming portion to be positioned in the projection area of the joint fitting, effectively utilizing the space between the capacitor end electrode and high-voltage output cable without increasing the overall voltage generator size
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 facilitates easy manufacturing and effectively prevents discharge occurrences by relaxing the electric field and securing insulation tolerance without increasing the size of the voltage generator.
Implementation Method 1
the component connecting portion is disposed so as not to lie outside the space between the end electrode of the capacitor and a tip portion of the high-voltage output cable... achieving miniaturization while preventing the occurrence of discharge by relaxing the electric field
Data Source
AI summary
A booster circuit includes, at a substrate end of an insulating substrate, an input part of voltage, an output part of voltage, and a conductive L-shaped joint fitting. The L-shaped joint fitting includes a plate-shaped bottom surface portion attached to the insulating substrate and a plate-shaped back surface portion bent from the bottom surface portion and extending in a specific direction. In the input part and the output part, a capacitor, a diode, and a connection line connecting the insulating substrates are electrically connected at a component connecting portion, and the L-shaped joint fitting is disposed such that a lead forming portion of a lead connected to the capacitor, a lead forming portion of a lead connected to the diode, and the component connecting portion fit within an area of a main surface of the back surface portion and an area of a main surface of the bottom surface portion.