多極環型鐵氧體（永久磁鐵）可用於馬達等裝置，環型磁鐵充磁磁軛裝置的設計參數，如導磁柱尺寸、磁軛尺寸、槽開口距離、齒部寬度與磁極頭幾何形狀等，會影響環型磁鐵充磁效果，進而影響馬達運轉效率及其噪音。本論文應用JMAG模擬軟體進行充磁磁軛磁通密度波形分析，探討環型磁鐵充磁磁軛的設計參數，對於充磁磁軛表面磁通密度波形的影響進行討論，並以磁通密度波形與正弦波的匹配率，設計環型磁鐵充磁磁軛裝置。依據模擬分析結果，獲得充磁磁軛裝置設計參數，並製作環型磁鐵充磁磁軛裝置實體，再以此充磁磁軛裝置進行多極環型鐵氧體充磁驗證。本研究結果顯示，充磁磁軛的設計參數，在導磁柱直徑20 mm、磁軛直徑60 mm、齒部寬度8 mm、槽開口距離2.4 mm、及磁極頭形狀為外圓時，充磁磁軛產生之磁通密度波形與標準正弦波匹配率達95.9 %。多極環型鐵氧體，依上述設計參數製作的充磁座，進行充磁後量測，多極環型鐵氧體磁鐵，磁通密度波形與標準正弦波匹配率達92.59 %。

Multi-polar ring ferrite (permanent magnet) can be used in motors and other devices. The design parameters of the ring magnet magnetizing fixture, such as the size of the magnetic pole, the size of the fixture, the slot opening distance, the tooth width and the geometry of the magnetic pole head, will affect the magnetizing effect of the ring magnet, thereby affecting the motor operating efficiency and noise. This paper uses JMAG simulation software to analyze the magnetic flux density on the surface of the ring magnet magnetizing fixture. The design parameters of the ring magnet magnetizing fixture’s impacts on the waveform of the magnetic flux density on the surface of the ring magnet magnetizing fixture are studied on this research by analyzing the magnetic flux density waveform matching difference with a sine wave at the same peak and frequency. A ring magnet magnetizing fixture is made by the design parameters of the ring magnet magnetizing fixture which were based on the simulation analysis results. Then, the multi-pole ferrite rings were magnetized by this ring magnet magnetizing fixture. When the diameter of the magnetic column is 20 mm, the diameter of the yoke is 60 mm, the tooth width is 8 mm, the slot opening distance is 2.4 mm, and the shape of the pole head is an outer circle, the magnetic flux density waveform on the ring magnet magnetizing fixture matches the standard sine wave with a matching rate of 95.9%. The multipolar ferrite ring magnetized by this ring magnet magnetizing fixture had magnetic flux density waveform on surface matching the standard sine wave with a matching rate of 92.59%.

摘要 i
ABSTRACT ii
誌謝 iv
目錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1前言 1
1.2研究動機及研究目的 3
第二章 文獻回顧 4
2.1磁鐵簡介 4
2.1.1鐵氧體材料的發展歷史 5
2.1.2鐵氧體的分類 6
2.2磁性材料 8
2.3永磁材料磁滯曲線及磁性能指標 10
2.4鐵氧體磁鐵製程 15
2.5電磁理論 19
2.5.1基本磁性術語 20
2.6永久磁鐵充磁 22
2.7磁鐵磁化方向 24
2.7.1多極環型磁鐵磁路設計 27
2.7.2磁鐵充磁的方式 28
2.8測量磁力方法 32
2.9充磁波形種類 34
2.9.1磁通密度波形表徵 35
2.9.2波形匹配率 36
2.10充磁座設計 37
2.10.1充磁磁軛介紹 40
2.11 JMAG模擬軟體 41
第三章 實驗設計 44
3.1實驗設計流程 44
3.2充磁磁軛JMAG模擬參數 47
3.3多極環型鐵氧體與設備 49
第四章 實驗結果與討論 50
4.1導磁柱尺寸分析 50
4.2磁軛尺寸分析 56
4.3齒部寬度分析 59
4.4槽開口距離分析 62
4.5磁頭形狀分析 66
4.6充磁座實物製作 71
4.7充磁與量測 75
第五章 結論 80
5.1研究結論 80
5.2未來研究建議 80
參考文獻 81

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