Miniaturized Ion Pump Using Ring Magnets for Portable Vacuum
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Solution Overview
Problem
Conventional ion pumps are large, heavy, and inefficient, with high power consumption, making them difficult to move and not suitable for portable vacuum applications, and they often require many insulators that can emit gases, reducing vacuum quality and limiting their use in various vacuum chambers.
Innovation Solution
A portable vacuum carrying system utilizing a miniaturized ion pump with a cylindrical casing as a negative electrode and surrounding ring-like magnets to create three-dimensional magnetic fields, reducing size and weight, and using batteries for power, along with a movement mechanism for magnets and a casing made of lightweight materials like aluminum with titanium, to enhance efficiency and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional ion pumps use tabular permanent magnets arranged in parallel across a cuboid container, then the magnetic fields are unidirectional, but the spaces in the ion pumps are not effectively utilized and the device becomes large and heavy
Solution Approach 1:
The patent transitions from a two-dimensional arrangement of tabular magnets to a three-dimensional configuration using ring-like magnets positioned at multiple heights along the cylindrical axis. This spatial reconfiguration creates multidirectional magnetic fields that effectively utilize the entire ion pump volume, resolving the contradiction between compact size and magnetic field versatility.
Solution Approach 2:
The invention employs a composite structure combining cylindrical permanent magnets with soft magnetic materials arranged in alternating patterns. This composite configuration generates both radial and axial magnetic field components, achieving effective three-dimensional magnetic field distribution while maintaining a compact cylindrical form factor.
2Reliability
If conventional ion pumps use many insulators such as ceramics to obtain insulation between electrodes, then insulation is achieved, but gases are emitted from ceramics etc., lowering a degree of vacuum
Solution Approach 1:
The patent removes traditional ceramic insulators from the electrode structure and replaces them with a magnetic field-based separation mechanism. The cylindrical negative electrode and ring-like magnets create magnetic confinement that eliminates the need for physical insulating barriers, thereby preventing gas emission from insulator materials and improving vacuum quality.
Solution Approach 2:
The invention substitutes mechanical insulators (ceramics) with a magnetic field system for electrode separation. The radial and axial magnetic fields generated by the ring-like magnets provide the necessary isolation between electrodes without requiring physical insulating materials, thus eliminating gas emission from ceramics.
3Reliability
If conventional ion pumps are made large and heavy, then they can maintain vacuum, but they cannot be moved easily and power consumption is large
Solution Approach 1:
The patent divides the ion pump into modular components: a cylindrical casing, segmented ring-like magnets positioned at different heights, and electrode structures. This segmentation allows for a compact cylindrical design that reduces overall weight while maintaining vacuum capability through the distributed magnetic field configuration.
Solution Approach 2:
The invention changes the geometric parameters from a cuboid container to a cylindrical form factor, and transitions from tabular to ring-like magnet shapes. These parameter changes enable a more space-efficient design with reduced volume and weight, while the three-dimensional magnetic field configuration maintains effective vacuum maintenance capability.
4Device complexity
If conventional ion pumps use unidirectional magnetic fields, then the structure is simple, but the spaces in the ion pumps are not effectively utilized
Solution Approach 1:
The patent introduces dynamic magnetic field characteristics by positioning ring-like magnets at multiple heights along the cylindrical axis, creating magnetic fields that vary in both radial and axial directions. This dynamic field configuration effectively utilizes the three-dimensional space within the ion pump while maintaining a relatively simple overall structure.
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 system allows for easy transportation of samples in a vacuum environment while maintaining high vacuum quality, supporting use in various vacuum chambers with reduced weight and power consumption, and improved magnetic field efficiency.
Implementation Method 1
electrons are spirally moved by means of a magnetic field
Implementation Method 2
residual gas molecules are collided with electrons that are spirally moving and are ionized
Implementation Method 3
the ionized molecules sputter the cathode electrode to adsorb onto the surfaces of the anode electrode or the like
Implementation Method 4
permanent magnets each having the same shape and character are located in the direction of the same magnetic pole
Data Source
Figure 1(a)~1(c)
Figure 2~3
Figure 4~7
AI summary
It is an object of the present invention to provide a portable vacuum carrying system. The above-mentioned problem is solved by a vacuum carrying system comprising an ion pump (6) comprising a casing (1), a positive electrode (2) provided in the casing (1), a negative electrode (3) fixed to the inner wall of the casing (1) and located on the circumference of the positive electrode (2), magnets (4) placed so as to surround the circumference of the negative electrode (3), and a connection part (5) for connecting the casing (1) to other device.