關於Tesla 的一些消息 - 汽車
By Poppy
at 2020-07-14T11:32
at 2020-07-14T11:32
Table of Contents
※ 引述《Scape (缺鈣缺很大)》之銘言:
: 1. 專利
: 從五月份開始至今,被公開的Tesla 專利申請共有十多項,各方面都有,提出
: 幾個來介紹:
: i) STATOR FOR AN ELECTRIC MOTOR
: https://i.imgur.com/gH8zmgb.png
: https://i.imgur.com/ogFz4so.png
: https://i.imgur.com/A1F7zBG.png
: https://i.imgur.com/NwhRKGv.png
: https://i.imgur.com/Dk7gI2t.png
: 這份關於馬達定子的專利中提到,對於典型的定子的線圈纏繞所需的工具
: 要求而言,其纏繞方式可能招致額外的費用。而這份專利是否能夠降低成
: 本或是提高效能專利中並沒有明說。
: https://bit.ly/308lH6h
這篇專利講的是馬達定子部製造組裝方法
專利不能只寫新構造或功能,內容要有"欲解決之問題"
https://i.imgur.com/B6q85lY.jpg
https://i.imgur.com/wMDgtML.jpg
這是馬達定子部細鋼片(stator core)
https://i.imgur.com/SO4dJPX.jpg
由沖壓製成約0.35mm的矽鋼片疊積而成(若是整塊會有較高之渦流損)
由於定子槽(slot)朝內,且槽跟槽之間空隙一定
因此繞線時較困難具挑戰性,需要較多時間和較複雜的工具(繞線工具成本高)
Tesla的專利是把stator core分成齒部(teeth)和楔形(wedge)
https://i.imgur.com/zWWwuZj.jpg
將各個teeth單獨繞線好再組裝
1. 解決傳統繞線加工複雜且難度高的問題
2. 解決傳統繞線工具成本高的問題
類似分塊式設計的專利也不算少
(關鍵字:divided core, sliced core, stator core assmebly)
專利 US 2012/0086300 A1
https://i.imgur.com/ljHIFzX.jpg
專利 CN 208986693
https://i.imgur.com/EWdtoQ2.jpg
分塊式設計
https://i.imgur.com/dtymgEc.jpg
https://i.imgur.com/bsbDkuD.jpg
這種設計好處是繞線難易度降低,但也有伴隨而來的問題
1. 各模塊之間的磁阻
(1) 若採用黏合,非磁性體黏合劑會產生磁阻
(2) 若採用機械式壓裝等,只要有細小間隙仍有磁阻
2. 各模塊間的間隙公差與組裝問題
(1) 組裝失敗
https://i.imgur.com/4MzaSnF.jpg
(2) 公差間隙與組裝導致的問題(振動等)
https://i.imgur.com/LG9ZKCt.png
一旦把定子分成更多零部件,需要組裝的數量越多
整體定子部公差間隙就更難掌握
大概是這樣
--
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汽車
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