Pressure-Resistant Housing With Insulated Feedthroughs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high-pressure-resistant housing designs with current feedthroughs face challenges in maintaining tight seals against extremely high pressures, often leading to leakage issues due to the limitations of stuffing boxes and clamping mechanisms.
Innovation Solution
A housing design featuring multiple parts with insulators between facing surfaces, where the insulators form a seal under high pressure, allowing the housing parts to be electrically conductive and insulated, with dielectric coatings and metal layers for enhanced sealing and electrical connectivity, eliminating the need for clamping devices under high pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stuffing boxes are used for current feedthrough in high-pressure housings, then electrical connections can be established, but leakage occurs at higher pressures with sealing material shooting out
Solution Approach 1:
The patent removes the stuffing box component entirely from the housing design. Instead of using a stuffing box for current feedthrough, the invention integrates electrical connections directly into the housing structure through conductive housing parts that eliminate the need for separate sealing components, thereby preventing leakage and sealing material ejection at high pressures
Solution Approach 2:
The patent combines the functions of electrical conduction and structural sealing into the housing parts themselves. The housing parts are made electrically conductive and form both the structural enclosure and the electrical connection pathway, merging previously separate functions into a unified structure that maintains sealing integrity under high pressure
2Strength
If traditional clamping mechanisms are used to secure housing parts, then housing integrity is maintained, but complexity increases and sealing fails at extreme pressures
Solution Approach 1:
The housing parts themselves provide the clamping and sealing function through their conductive structure. The design eliminates the need for separate clamping mechanisms by making the housing parts self-sufficient for both structural integrity and electrical conduction, thereby reducing device complexity while maintaining strength at extreme pressures
Solution Approach 2:
The housing parts serve multiple functions simultaneously: they provide structural enclosure, electrical conduction, and self-clamping capability. This multi-functionality eliminates the need for dedicated clamping mechanisms while maintaining housing integrity under high pressure conditions
3Reliability
If housing parts are made electrically conductive for sensor/actuator connections, then electrical connectivity is improved, but electrical insulation between parts becomes challenging
Solution Approach 1:
The patent divides the housing into multiple electrically conductive parts that are spatially segmented and electrically isolated through insulation material. This segmentation allows each housing part to be conductive for electrical connections while the insulation between parts prevents electrical interference, maintaining both connectivity and isolation
Solution Approach 2:
The patent introduces insulation material as an intermediary between electrically conductive housing parts. This intermediary layer enables electrical connections within each conductive part while preventing electrical interference between adjacent conductive parts, simplifying the overall electrical insulation requirement
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 provides a self-sealing solution that maintains integrity at pressures up to 8000 bar, preventing leakage and allowing for reliable electrical connections and sensor/actuator functionality within high-pressure environments without additional sealing materials.
Implementation Method 1
which is between them with each other facing and spaced support surfaces, between which at least one insulator is arranged, with the at least one insulator an inner volume close
Implementation Method 2
at least one dielectric coating arranged on their outer surface and / or an inner surface which completely covers the outer surface and / or the inner surface to electrical connections
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The invention relates to a housing (3) with at least one cable entry (5, 7) that is sealed against an externally acting high pressure, e.g., of at least 1000 bar, e.g., up to 8000 bar. The housing has a first (3a) and a second housing part (3b) between mutually facing and spaced-apart contact surfaces (4), between which at least one insulator (5) is arranged, with which at least one insulator seals an internal volume. The housing can be easily opened by spaced apart the first housing part from the second. In general, the housing parts are electrically insulated from each other by the insulator. An electrical element (11) which is arranged outside the housing (3) is electrically connected to another electrical element (11) in the internal volume of the housing (3).