Field-Pole Magnet Fracturing Apparatus with Powder Removal
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Solution Overview
Problem
The existing methods for manufacturing field-pole magnets in rotary electric machines often result in abnormal fractures due to foreign substances like fine powder jamming between the tool and the magnet, leading to inaccurate fracture surfaces.
Innovation Solution
A field-pole magnet manufacturing apparatus that includes a support unit, a fracture unit, and a powder removal unit to suck and discharge crush powder during the fracturing process, ensuring accurate fracture surfaces by preventing foreign substances from interfering with the fracture process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the magnet is fractured by pressing with a blade and support units, then the magnet is divided into magnet pieces, but foreign substances like fine powder jam between the support units and magnet causing abnormal fracture and reducing fracture surface accuracy
Solution Approach 1:
The patent extracts and removes the harmful foreign substances (crush powder) from the fracture zone during the fracturing process. A powder removal unit is introduced that actively sucks and discharges the powder generated during magnet fracture, preventing it from jamming between the support units and magnet, thus maintaining fracture surface accuracy.
Solution Approach 2:
The patent introduces a powder removal unit as an intermediary system between the fracture unit and the magnet. This intermediary component (powder removal unit with suction and discharge mechanisms) mediates the harmful interaction by continuously removing powder, preventing it from interfering with the fracture process.
2Reliability
If the blade or support units hit the magnet only partially due to powder jamming, then abnormal fracture occurs, but this leads to deterioration in fracture surface accuracy
Solution Approach 1:
The patent ensures continuous removal of powder during the entire fracturing process. The powder removal unit operates continuously to suck and discharge powder, maintaining consistent contact between the support units and magnet throughout the fracturing process, preventing intermittent abnormal fractures and ensuring reliable, accurate results.
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 apparatus effectively prevents abnormal fractures by removing crush powder, improving the accuracy and quality of the fracture surfaces, and allowing for stable and straight fracturing of the magnets.
Implementation Method 1
a powder removal unit that is arranged between the pair of support units and is configured to remove crush powder produced by fracture of the magnet, wherein the powder removal unit is configured to suck and discharge crush powder at the time of fracture
Data Source
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AI summary
A field-pole magnet manufacturing apparatus manufactures magnet pieces that constitute a field-pole magnet arranged in a rotary electric machine by fracturing the magnet. This manufacturing apparatus includes: a support unit on which the magnet is placed; a fracture unit that is arranged opposite to the support unit across the magnet and is configured to fracture the magnet by pressing the magnet while in contact with the magnet; and a powder removal unit that is configured to remove crush powder produced by fracture of the magnet.