Magnet orientation device and magnet
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Solution Overview
Problem
Washing machine motors experience decreased output and increased noise due to asymmetric magnetic center lines formed by the magnetic division region connecting multiple polar regions and physical division regions in magnets.
Innovation Solution
A magnet orientation device comprising an upper plate with a magnetic region and non-magnetic region, and a lower plate with a magnetic region and non-magnetic region, where the plates' surfaces feature grooves and protrusions to symmetrically orient the magnetic center lines of the magnet, improving motor output and reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If magnets with multiple polar regions are used to increase motor power, then motor output increases, but asymmetric magnetic center lines cause increased noise and reduced efficiency
Solution Approach 1:
The patent intentionally introduces asymmetric non-magnetic regions between adjacent polar regions in the magnet structure. This controlled asymmetry compensates for the natural asymmetry in magnetic center lines, achieving overall symmetry in magnetic field distribution. The non-magnetic regions are strategically positioned and sized to balance the magnetic field, thereby reducing noise and vibration while maintaining high motor output.
2Power
If magnets with multiple polar regions are used to increase motor power, then motor output increases, but asymmetric magnetic center lines cause reduced efficiency
Solution Approach 1:
The patent intentionally introduces asymmetric non-magnetic regions between adjacent polar regions in the magnet structure. This controlled asymmetry compensates for the natural asymmetry in magnetic center lines, achieving overall symmetry in magnetic field distribution. The non-magnetic regions are strategically positioned and sized to balance the magnetic field, thereby reducing noise and vibration while maintaining high motor output.
3Ease of manufacture
If simple magnet structure is used to reduce manufacturing complexity, then manufacturing is easier, but magnetic center lines cannot be symmetrically oriented
Solution Approach 1:
The magnet structure is segmented into multiple polar regions with non-magnetic regions in between. This segmentation allows independent design and optimization of each region's magnetic properties and geometry. The non-magnetic regions act as separate elements that can be precisely controlled to achieve symmetric magnetic center lines, while the overall manufacturing process remains relatively simple.
Solution Approach 2:
The patent intentionally introduces asymmetric non-magnetic regions between adjacent polar regions in the magnet structure. This controlled asymmetry compensates for the natural asymmetry in magnetic center lines, achieving overall symmetry in magnetic field distribution. The non-magnetic regions are strategically positioned and sized to balance the magnetic field, thereby reducing noise and vibration while maintaining high motor output.
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 solution effectively symmetrically orients the magnetic center lines of the magnet, enhancing motor output and reducing noise by optimizing the design of the magnet orientation device and its components.
Implementation Method 1
the upper plate may include a first magnetic region and a first non-magnetic region surrounding the first magnetic region, and the lower plate may include a second magnetic region and a second non-magnetic region surrounding the second magnetic region
Data Source
Figure 1~2
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AI summary
A magnet orientation device and a magnet are provided. The magnet orientation device according to an aspect of the present disclosure comprises an upper plate disposed on a magnet raw material formed into an arc shape that is convex upward, a lower plate disposed under the magnet raw material, and dies disposed on both sides of the magnet raw material, wherein the upper plate includes a first magnetic region and a first non-magnetic region surrounding the first magnetic region, the lower plate includes a second magnetic region and a second non-magnetic region surrounding the second magnetic region, a lower surface of the first magnetic region includes a plurality of grooves formed concave upward, an upper surface of the second magnetic region includes a plurality of protrusions formed convex upward, a horizontal length of the first magnetic region is greater than a horizontal length of the magnet raw material, and a horizontal length of the second magnetic region is equal to or less than the horizontal length of the magnet raw material.