Hydrogen Peroxide-Resistant Planar Drive With Adjustable Decontamination Gap
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Solution Overview
Problem
Planar drives are not suitable for aseptic applications due to limited access of gaseous decontamination agents, making decontamination difficult and time-consuming.
Innovation Solution
A planar drive designed with magnetic interaction and hydrogen peroxide resistance, featuring adjustable gaps, encapsulated electrical components, and integrated cooling and heating systems to facilitate decontamination, along with bioindicators for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If planar drives are used for aseptic applications, then productivity and automation are improved, but decontamination becomes difficult and time-consuming
Solution Approach 1:
The patent implements a variable gap between the mover and stator that can be dynamically adjusted. During decontamination, the gap is increased to allow penetration of gaseous decontamination agents, while during operation the gap is reduced for efficient magnetic coupling. This dynamic adjustment resolves the contradiction by enabling both automated operation and effective decontamination.
Solution Approach 2:
The patent changes the physical parameters of the system by modifying the gap distance between mover and stator based on operational mode. The gap is varied between a first value during operation and a second value during decontamination, allowing the system to optimize for either productivity or decontamination effectiveness depending on the required function.
2Force
If the gap between mover and stator is reduced for efficient magnetic coupling, then magnetic interaction is improved, but access for gaseous decontamination agents is blocked
Solution Approach 1:
The system dynamically adjusts the gap between mover and stator based on operational requirements. During magnetic operation, the gap is minimized for strong coupling. During decontamination, the gap is maximized to allow gas penetration. This dynamic behavior resolves the contradiction between magnetic force and decontamination access.
Solution Approach 2:
The patent performs preliminary action by adjusting the gap to a larger value before introducing gaseous decontamination agents, ensuring they can penetrate the gap. After decontamination, the gap is reduced for operation. This preliminary preparation resolves the access problem without compromising operational efficiency.
3Ease of operation
If electrical components are exposed for functionality, then ease of operation is improved, but resistance to hydrogen peroxide decontamination is reduced
Solution Approach 1:
The patent uses encapsulation with hydrogen peroxide-resistant materials to protect electrical components. The encapsulation acts as a protective shell that maintains electrical functionality while providing resistance to decontamination agents. This resolves the contradiction by shielding components without compromising operation.
Solution Approach 2:
The patent employs composite material structures where electrical components are encapsulated in hydrogen peroxide-resistant materials. This composite approach allows the system to simultaneously achieve electrical functionality and chemical resistance, resolving the contradiction between operational ease and decontamination reliability.
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
Enables effective decontamination of planar drives for aseptic applications without manual intervention, ensuring thorough and verified cleanliness.
Implementation Method 1
The movement and the floating state of the mover occurs due to magnetic interaction between the mover and the stator
Implementation Method 2
By cooling the mover, hydrogen peroxide from the environment of the mover can be deposited (or condensed or adsorbed) on the mover (or its surface)
Implementation Method 3
By heating the mover, the hydrogen peroxide deposited (or condensed or adsorbed) on the mover can be evaporated (or vaporized)
Implementation Method 4
By cooling the mover, hydrogen peroxide from the environment of the mover can be deposited (or condensed or adsorbed) on the mover (or its surface)
Data Source
AI summary
23 The invention relates to a planar drive (10) with at least one stator (12) and at least one mover (14), wherein the planar drive (10) is designed to be resistant to hydrogen peroxide. The invention further relates to a pharmaceutical plant with said type of planar drive (10) and to a method for decontaminating said type of planar drive (10).