Magnetic Levitation Thin Pump Structure for Friction Reduction
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Solution Overview
Problem
Conventional water-cooling pump structures have a large overall volume and thickness due to mechanical friction, leading to reduced service life and increased noise, and require additional components like bearings, which increase manufacturing costs.
Innovation Solution
A thin type pump structure utilizing magnetic levitation to suspend the rotor assembly within the pump chamber, eliminating frictional contact and allowing for a reduced design that omits traditional bearings and fixing means, thereby enhancing service life and reducing noise and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional pump structure with mechanical friction is used, then the pump can be manufactured with traditional components, but the overall volume and thickness are large
Solution Approach 1:
The patent replaces the traditional mechanical bearing support system with a magnetic field-based suspension system. The stator assembly generates a magnetic field that suspends the rotor assembly without physical contact, eliminating the need for bearings and mechanical fixing means. This substitution of mechanical support with magnetic field support reduces the overall volume and thickness of the pump structure while maintaining operational stability.
Solution Approach 2:
The patent extracts and removes traditional mechanical components such as bearings and fixing means from the pump structure. By eliminating these components through magnetic suspension, the overall volume is reduced and the structural complexity is simplified, achieving a more compact pump design.
2Ease of manufacture
If traditional bearings and fixing means are used, then the pump structure is stable, but the manufacturing cost increases
Solution Approach 1:
The patent extracts and eliminates traditional mechanical components such as bearings and fixing means from the pump structure. By removing these components and replacing them with a magnetic suspension system, the bill of materials is reduced, leading to lower manufacturing costs while maintaining structural stability through magnetic field support.
3Duration of action of moving object
If the shaft of the rotor assembly is in frictional contact with the shaft seat, then the pump can be structurally simple, but the service life is shortened due to mechanical wearing
Solution Approach 1:
The patent replaces the mechanical friction-based contact system with a magnetic field-based non-contact suspension system. The stator assembly generates a magnetic field that suspends the rotor assembly without physical contact between the shaft and shaft seat, eliminating mechanical wearing and significantly extending the service life of the pump.
Solution Approach 2:
The patent converts the harmful effect of mechanical friction and contact into a beneficial magnetic field interaction. By using magnetic fields instead of mechanical contact, the harmful wearing is eliminated while maintaining the necessary support and positioning functions, thereby extending service life.
4Object-generated harmful factors
If the shaft of the rotor assembly is in frictional contact with the shaft seat, then the pump structure is mechanically simple, but noise is increased
Solution Approach 1:
The patent replaces the mechanical friction-based contact system that generates noise with a magnetic field-based non-contact suspension system. The magnetic field supports and positions the rotor assembly without physical contact, eliminating the friction-induced noise while maintaining structural functionality.
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 magnetic levitation design significantly reduces mechanical wear, noise, and overall volume, while lowering manufacturing costs and increasing the service life of the pump structure.
Implementation Method 1
enabling mutual electromagnetic induction and magnetic field generation between the magnetic element and the stator assembly
Implementation Method 2
the rotor assembly to float in the pump chamber by magnetic levitation
Implementation Method 3
generate a magnetic field between them. At this point, a first annular space is formed between the pivot hole of the rotor assembly and the shaft in the pump housing
Data Source
AI summary
A thin type pump structure includes a pump housing, a rotor assembly, a stator assembly, a flow-guiding plate, and a closing member. The pump housing has a first side defining an open-topped pump chamber having a forward projected shaft and an opposite second side defining an open-bottomed annular recess at an area opposite to and around the pump chamber. The rotor assembly has a pivot hole and is received in the pump chamber with the pivot hole turnably around the shaft. The rotor assembly includes a blade wheel and a magnetic element located behind the blade wheel. The stator assembly is received in the annular recess to horizontally face toward the magnetic element, enabling mutual electromagnetic induction and magnetic field generation between the magnetic element and the stator assembly. The flow-guiding plate covers the pump chamber, and the closing member closes the pump housing from the first side thereof.