Drive Module Cable Venting for Airtight Electromagnetic Transport
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic transport systems face challenges with pressure equalization in airtight drive modules, leading to potential mechanical damage and reduced service life due to external influences and the need for additional maintenance with pressure equalization elements.
Innovation Solution
Integrating an empty conduit within the supply cable and power cables to facilitate air exchange and pressure equalization between the drive modules and the environment, eliminating the need for separate pressure equalization elements and reducing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate pressure equalization elements are added to drive modules, then pressure equalization function is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The pressure equalization function is merged with the supply cable by integrating an empty conduit inside the cable structure. The supply cable now serves dual purposes: electrical power transmission and pressure equalization, eliminating the need for separate pressure equalization elements and reducing device complexity
Solution Approach 2:
The supply cable is transformed into a multi-functional component that simultaneously provides electrical power supply and pressure equalization through its integrated empty conduit. This universal design allows one component to fulfill multiple functions, reducing the overall number of parts needed in the system
2Object-affected harmful factors
If drive modules are made airtight, then protection from external contaminants is improved, but pressure equalization becomes difficult requiring additional elements
Solution Approach 1:
The empty conduit integrated in the supply cable acts as an intermediary channel that allows pressure equalization between the sealed drive module interior and the environment. This mediator enables gas exchange without compromising the airtight seal, as the conduit is specifically designed for this purpose within the cable structure
Solution Approach 2:
The empty conduit is nested within the supply cable structure, creating a hierarchical arrangement where the conduit is contained inside the cable. This nested design allows the pressure equalization function to be embedded within the existing cable infrastructure without adding external components
3Reliability
If pressure equalization elements are added, then pressure control is improved, but service life is reduced due to maintenance requirements
Solution Approach 1:
The integrated empty conduit in the supply cable provides automatic pressure equalization without requiring external intervention or maintenance. The system self-regulates pressure through the conduit's passive gas exchange capability, eliminating the need for maintenance activities that would reduce service life
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 provides cost-effective and maintenance-free pressure equalization, protecting the drive modules from external contaminants and ensuring reliable operation by using the environment of the supply voltage for air exchange, thus extending the service life and reducing maintenance requirements.
Implementation Method 1
an exchange of a medium, in particular an air exchange, between an interior of the at least one drive module formed by the airtight housing and the environment of the transport system takes place only via the empty conduit
Implementation Method 2
a magnetic excitation field, which is generated, for example, by drive magnets of the transport unit, interacts with a magnetic field of the stator or the at least one drive module, to move the transport unit
Implementation Method 3
The temporally variable magnetic field is generated, for example, by drive coils, which are arranged, for example, in the transport plane of the planar motor (i.e., on the stator or on at least one drive module), and in some embodiments also in a plurality of planes
Data Source
AI summary
An electromagnetic transport system includes a stator and at least one transport unit movable along the stator. The stator includes at least one drive module with an airtight housing where a plurality of drive coils are arranged. A supply cable connects the stator or the at least one drive module to a supply voltage for energizing the drive coils. An empty conduit is integrated into the supply cable and is arranged inside an outer sheath of the supply cable. The empty conduit is provided with an opening at a supply-side end of the supply cable. An end of the supply cable is connected to the at least one drive module such that an exchange of a medium between an interior of the at least one drive module, formed by the airtight housing, and an environment in the area of the supply voltage only takes place via the empty conduit.