產(chǎn)品詳情
IC693CPU341RR
IC693CPU341RR
由上圖可以看出，扁線電機由于槽滿率的大幅提升，已經(jīng)成為新能源驅(qū)動電機的絕對主流。從產(chǎn)品的角度，當(dāng)然是槽滿率越高越好，但另一方面槽滿率的不斷提高，對扁線電機的制造工藝、設(shè)備精度/復(fù)雜度都帶來了巨大挑戰(zhàn)。
那么槽滿率的提高，對于扁線定子的制造而言，難在哪兒？
首先，對銅線成型的精度和一致性要求高。銅線成型時，不可能完全與理論數(shù)模線型一致，輪廓度、直線度等均存在誤差和波動。所以相比于3D數(shù)模，槽內(nèi)一組銅線在插線時并沒有那么規(guī)整。這種不規(guī)整會明顯增加銅線入鐵芯槽時的摩擦阻力，需要更大的壓入力才能克服，而壓入力過大會導(dǎo)致插入不到位、銅線擠壓變形或損傷、絕緣紙滑動等一系列問題。槽滿率越高，鐵芯槽內(nèi)的設(shè)計預(yù)留間隙就越小，對這種不規(guī)整現(xiàn)象的容忍度也越低。
線成型的關(guān)鍵就在于控制Hairpin的成型精度，由于銅線在成型時會有一定回彈，3D模具形狀不能簡單按照線型數(shù)模繪制，需考慮以下幾個影響回彈量的因子：
線規(guī)格---銅線寬度和厚度
Hairpin形狀---跨距、弧度、角度等
基材彈性模量---銅材本身的機械特性
漆膜材質(zhì)---漆膜的厚度、材質(zhì)也對銅
線整體彈性模量有影響
躍科在模具設(shè)計時，會根據(jù)以上幾個因素，對銅線的成型過程進行分析和仿真模擬，并結(jié)合大量應(yīng)用經(jīng)驗設(shè)計出最合理的模具輪廓，得到最精確的線型尺寸，線型整體輪廓度可達0.1~0.2mm。
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ABB 3HAB2241-1 DSQC325 MAIN COMPUTER BD S4
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ABB 3HAB6372-1 DSQC330, Backplane for S4C
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