Sealed Trace Detection Device for Moisture Isolation
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Solution Overview
Problem
Existing trace detection devices face limitations in harsh environments due to moisture and humidity, which affect the sensitivity and stability of the ceramic migration tube and preamplifier/high voltage circuit components, leading to increased failure rates and reduced service life.
Innovation Solution
A fully enclosed trace detection device design with a box body, ion migration tube assembly, and preamplifier/high voltage circuit board, utilizing O-type rings for sealing and buffer bins to stabilize gas flow, and thermally conductive/insulating materials to isolate components from environmental influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If three-proof glue is used for waterproof and moisture-proof treatment on circuit boards, then the circuit board is protected from moisture, but the treatment cannot fully isolate the circuit board from the environment and accelerates aging under severe conditions
Solution Approach 1:
The patent replaces three-proof glue with a sealed cabinet structure that fully encloses the circuit board and other components. This rigid shell approach provides complete isolation from the environment, preventing moisture and harmful substances from contacting the components, thereby both protecting against moisture and extending service life under harsh conditions.
Solution Approach 2:
The patent divides the device into separate sealed compartments: the circuit board is enclosed in a cabinet, the migration tube has its own sealed structure with buffering bin, and each component is isolated from the external environment. This segmentation allows each part to be independently protected, improving overall reliability without compromising service life.
2Temperature
If ceramic or glass wool thermal insulation layer is wrapped around the migration tube, then thermal insulation is provided, but the thermal insulation layer absorbs moisture and allows water molecules to penetrate into the migration tube body
Solution Approach 1:
The patent replaces the porous ceramic or glass wool thermal insulation layer with a sealed cabinet structure that provides both thermal insulation and moisture barrier functions. The sealed enclosure prevents water molecules from penetrating into the migration tube body while maintaining thermal insulation performance.
Solution Approach 2:
The patent uses a composite structure combining the sealed cabinet, buffering bin, and sealed connection components to simultaneously achieve thermal insulation and moisture protection. This composite approach integrates multiple functions (thermal insulation, moisture barrier, sealing) into a unified system that eliminates the harmful moisture absorption issue.
3Device complexity
If the device operates in harsh environments without full sealing, then the device structure remains simple, but detection sensitivity and stability are affected due to environmental factors
Solution Approach 1:
The patent introduces a sealed cabinet structure that fully encloses the circuit board and other sensitive components. This sealing approach effectively isolates the components from harsh environmental factors, maintaining detection sensitivity and stability without significantly complicating the overall device structure.
Solution Approach 2:
The patent segments the device into sealed functional modules (cabinet for circuit board, sealed migration tube assembly with buffering bin), allowing each module to be independently protected. This modular sealed design maintains structural simplicity while ensuring detection precision is not affected by environmental factors.
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 fully sealed design effectively protects the device from harsh environments, improving detection sensitivity, stability, and reliability, while reducing failure rates and extending service life by isolating critical components from environmental factors.
Implementation Method 1
The first buffer bin and the second buffer bin are respectively hermetically connected to corresponding parts of the box body through respective O-type rings
Implementation Method 2
a thermally conductive material is provided between the preamplifier and high voltage circuit board and the top plate of the box body
Implementation Method 3
a thermally insulating material is provided between the ion migration tube assembly and the preamplifier and high voltage circuit board
Data Source
AI summary
The present disclosure provides a trace detection device. The trace detection device includes: a box body comprising a main body frame and a top plate, the top plate and the main body frame forming a fully enclosed cavity; an ion migration tube assembly in the cavity and on a first side of the cavity; and a preamplifier and high voltage circuit board in the cavity and on a second side of the cavity, the second side being opposite to the first side.