X-ray Generator Housing Pressure Compensation

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Solution Overview

Problem

The existing X-ray generator systems face issues due to thermal expansion and contraction of insulating liquids, which cause pressure fluctuations that can damage the housing and electronic components, leading to potential deformation and failure.

Innovation Solution

The introduction of a radiation device installation housing with a flange and a compensation device, such as an elastic drum membrane, that allows for thermal expansion and contraction while maintaining a constant pressure environment by deforming within a dedicated space, ensuring the insulating liquid is evenly distributed and preventing excessive pressure on electronic components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the housing is made sealed and filled with insulating liquid for cooling and insulation, then the cooling effect and insulation performance are improved, but the thermal expansion and contraction of the insulating liquid causes pressure fluctuations that can damage the housing and electronic components

Engineering Contradiction:
Improvecooling and insulation performanceVSAvoidpressure fluctuations from thermal expansion and contraction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs a flexible bladder (elastic drum membrane) inside the housing to absorb the thermal expansion and contraction of the insulating liquid. The bladder is made of elastic material that can deform under pressure changes, expanding when the liquid expands and contracting when the liquid contracts, thereby maintaining constant pressure on the housing walls and protecting electronic components from pressure damage.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent changes the physical state parameters of the system by introducing a compressible gas chamber above the insulating liquid. The gas chamber allows the liquid volume to change with temperature while maintaining constant pressure, as the gas compresses or expands to accommodate the liquid's thermal expansion and contraction without transmitting pressure fluctuations to the housing.

Inventive Principle:
Principle #35Parameter changes

2Volume of moving object

If the housing volume is reduced to make the device more compact, then the device size is reduced, but the insulating liquid may not be evenly distributed and may not fully utilize the housing space

Engineering Contradiction:
Improvehousing volumeVSAvoideven distribution of insulating liquid
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The patent uses the flexible bladder to automatically adjust the insulating liquid distribution within the housing. As the liquid expands or contracts with temperature changes, the bladder deforms to maintain uniform pressure distribution, ensuring the liquid remains evenly distributed throughout the available space without requiring external control mechanisms.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent introduces a dynamic element (the flexible bladder) that can change its volume and shape in response to thermal expansion and contraction of the insulating liquid. This dynamic adjustment ensures that the liquid remains evenly distributed throughout the housing volume regardless of temperature variations, preventing pooling or void formation.

Inventive Principle:
Principle #15Dynamics

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 solution effectively stabilizes the pressure within the housing, preventing damage from thermal expansion and contraction, ensuring the X-ray generator operates reliably by maintaining consistent pressure and ensuring the insulating liquid is fully utilized within the housing.

Implementation Method 1

the insulating liquid is heated and expanded (that is called as 'thermal expansion')

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

the insulating liquid will be cooled and contracted (that is called as 'cold contraction')

Methodology Applied
Scientific EffectThermal contraction: Thermal Contraction

Implementation Method 3

an elastic drum membrane which is able to fixedly connect with a port of the flange away from the inner wall of the housing body and cover on the port of the flange away from the inner wall of the housing body, and the elastic drum membrane is able to deform within the compensation device moving space toward the direction away from or close to the insulating liquid

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2677843B1Radiation device installation box and x-ray generator
Publication Date: 2020.01.22 NUCTECH CO LTD
  • EP2677843B1 patent drawingFigure 1
  • EP2677843B1 patent drawingFigure 2
  • EP2677843B1 patent drawingFigure 3~4

AI summary

The present invention pertains to an X-ray generator technical field, which discloses a radiation device installation housing and an X-ray generator. The radiation device installation housing of the present invention comprises a housing body, a flange fixedly provided on an inner wall of the housing body and shaped in circular and a compensation device fixedly or movably connected with the flange in a liquid tight manner; a liquid receiving cavity for receiving an insulating liquid formed between one side of two opposite sides of the compensation device and the inner wall of the housing body as well as the flange; a compensation device moving space formed between another side of the two opposite sides of the compensation device opposed to the inner wall of the housing body and an inner wall of the flange. The technical problem that the housing body and the electrical components within the housing body in the prior art are easily damaged due to pressure from the insulating liquid can be solved by the present invention.