LAMINATE CORE, ROTARY ELECTRIC MACHINE, AND MANUFACTURING METHOD OF LAMINATE CORE

To provide a laminate core, etc., in which multiple steel plates are stably connected.SOLUTION: A laminate core 20 comprises multiple steel plates 21 which are laminated in a thickness direction TD. The laminate core comprises a linear weld mark 30 connecting the multiple steel plates. The weld mark...

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Bibliographic Details
Main Authors ETO JUN, YAMAUCHI KAZUTERU
Format Patent
LanguageEnglish
Japanese
Published 22.10.2020
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Summary:To provide a laminate core, etc., in which multiple steel plates are stably connected.SOLUTION: A laminate core 20 comprises multiple steel plates 21 which are laminated in a thickness direction TD. The laminate core comprises a linear weld mark 30 connecting the multiple steel plates. The weld mark extends over the multiple steel plates on an end face 22 where the multiple steel plates are exposed. The weld mark has a weld depth DP30 which is varied in accordance with a wavelength LD42 longer than a thickness TH21 of the steel plate. The weld mark includes a continuous portion 34 which extends without varying the weld depth over the multiple steel plates. Further, the weld mark includes a variable portion 35 where the weld depth is periodically varied over the multiple steel plates. A depth DP34 in the continuous portion is substantially equal to a depth DP35 in the variable portion.SELECTED DRAWING: Figure 6 【課題】複数の鋼板が安定的に連結された積層コア等を提供する。【解決手段】積層コア20は、厚さ方向TDに積層された複数の鋼板21を有する。積層コアは、複数の鋼板を連結している線状の溶接痕30を有する。溶接痕は、複数の鋼板が露出する端面22において複数の鋼板にわたって延びている。溶接痕は、鋼板の厚さTH21より長い波長LD42により変動している溶接深さDP30を有する。溶接痕は、複数の鋼板にわたって溶接深さが変動することなく延びる連続部分34を有する。さらに、溶接痕は、複数の鋼板にわたって溶接深さが周期的に変動する変動部分35を有する。連続部分における深さDP34は、変動部分における深さDP35と実質的に等しい。【選択図】図6
Bibliography:Application Number: JP20190073593