Pump Rotor Magnet Cover With Integrated Weight Insertion
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Solution Overview
Problem
The existing cylindrical magnet pump requires multiple manufacturing steps due to the use of ultrasonic welding to fix the resin cap with an embedded weight, increasing production complexity.
Innovation Solution
A pump design featuring a motor with a rotor and magnet cover formed in a hollow-rod shape, where the magnet cover's end surface integrates multiple insertion portions, reducing the need for welding and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If ultrasonic welding is used to fix the resin cap with embedded weight, then the structural integrity is improved, but the number of manufacturing steps increases
Solution Approach 1:
The magnet cover integrates multiple functions into a single component: it covers the magnet, provides structural support, and incorporates insertion portions for weights. This merging eliminates the separate resin cap component and its associated ultrasonic welding step, reducing manufacturing complexity while maintaining structural integrity through the unified hollow-rod structure.
Solution Approach 2:
The magnet cover serves multiple purposes simultaneously: it acts as a protective cover for the magnet, provides a structural framework for the rotor, and includes integrated insertion portions for weight adjustment. This multi-functionality replaces what previously required separate components (magnet cover + resin cap with embedded weights), thereby reducing the number of manufacturing steps.
2Strength
If multiple components are assembled with welding, then the structural strength is improved, but the production time increases
Solution Approach 1:
By combining the magnet cover and resin cap functions into a single integrated magnet cover component, the patent eliminates the welding step entirely. The hollow-rod structure with integrated insertion portions achieves structural strength without requiring ultrasonic welding, thereby reducing production time and improving productivity.
3Stability of the object's composition
If a resin cap with embedded weight is used, then the balance adjustment is improved, but the manufacturing complexity increases
Solution Approach 1:
The magnet cover integrates the weight embedding function directly into its structure through the insertion portions. This allows balance adjustment while maintaining a simple unified component design, eliminating the need for a separate resin cap and reducing manufacturing complexity compared to the prior art.
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 design allows for a pump to be manufactured in fewer steps, minimizing air gaps and improving motor efficiency while reducing weight and vibration, thus enhancing overall performance.
Implementation Method 1
The magnet cover (6) covers at least a part of the magnet (7)
Implementation Method 2
The impeller (9) is rotated by the motor (3) to cause fluid to flow
Implementation Method 3
The motor (3) has a rotor (10). The rotor (10) rotates around an axis
Data Source
AI summary
The present disclosure provides a pump which can be manufactured in a few steps. The pump according to the present disclosure includes a motor and an impeller. The motor includes a rotor. The rotor includes a magnet and a magnet cover. The magnet cover covers at least a part of the magnet. The magnet cover is formed in a hollow-rod shape along an extension direction of the axis. The magnet cover includes an outer peripheral surface, an end surface (namely, the first end face), and a plurality of insertion portions. The outer peripheral surface is along the extension direction. The end surface extends from one end of the outer peripheral surface in a direction intersecting (that is, in a direction orthogonal to) the extension direction. The insertion portions are formed so as to open at the end surface. The plurality of insertion portions are arranged annularly about the axis.