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    • 33. 发明授权
    • Laminated core and method for manufacturing the same
    • 层压芯及其制造方法
    • US07847466B2
    • 2010-12-07
    • US12095570
    • 2007-09-04
    • Akira NagaiIwao Myojin
    • Akira NagaiIwao Myojin
    • H02K1/06
    • H02K1/148Y10T29/49009
    • A laminated core (10) and a method for manufacturing the same, the laminated core (10) formed with a plurality of continuous segment core sheets (13) wound and laminated in a spiral form while connecting portions (12) mutually connecting the adjacent segment core sheets (13) are bent and side edges of the adjacent segment core sheets (13) are fitted with each other, the connecting portions (12) being located in an outer peripheral portion (11) of the laminated core (10), the laminated core (10) comprising:a concave cutout (19) provided at a radially outward side of the connecting portion (12), the concave cutout (19) allowing a radial bulge (18) to be accommodated within an outer circle of the laminated core (19), the radial bulge (18) formed at a radially outward side of the connecting portion (12) by bending the connecting portion (12); andan inward cutout (20) provided at a radially inward side of the connecting portion (12), the inward cutout (20) defining a bending position of the connecting portion (12), wherein the connecting portion (12) has a narrow radial width and, before being bent, has a radial width in the range of 0.5 to 5 times a thickness of the segment core sheet (13).The laminated core (10) and the method for manufacturing the same are capable of producing a highly-efficient and high-quality product that is free from effects of the swell in the thickness direction of the connecting portion (12).
    • 叠层铁心(10)及其制造方法是将形成有螺旋形卷绕并层叠的多个连续分段铁芯片(13)的叠层铁心(10)连接在一起的相邻部分 芯片(13)弯曲并且相邻的分段芯片(13)的侧边缘彼此配合,连接部分(12)位于层叠铁心(10)的外周部分(11)中, 层叠铁芯(10)包括:设置在所述连接部分(12)的径向向外侧的凹形切口(19),所述凹形切口(19)允许径向凸起(18)容纳在所述层压 (19),通过弯曲连接部分(12)形成在连接部分(12)的径向外侧的径向凸起(18); 以及设置在所述连接部分(12)的径向内侧的向内切口(20),所述向内切口(20)限定所述连接部分(12)的弯曲位置,其中所述连接部分(12)具有窄径向 宽度,并且在弯曲之前具有在分段芯片(13)的厚度的0.5至5倍的范围内的径向宽度。 层叠铁心(10)及其制造方法能够制造无连接部(12)的厚度方向膨胀的效果的高效高品质的产品。