公开(公告)号：EP2073350A1

公开(公告)日：2009-06-24

申请号：EP07829432.9

申请日：2007-10-09

申请人： Daikin Industries, Ltd.

发明人： KATAOKA, Yoshihiro ,  AOTA, Keiji ,  NAKAMASU, Shin

IPC分类号： H02K1/27 ,  F04B39/00 ,  H02K21/14

CPC分类号： F04C23/008 ,  F04B35/04 ,  F04C18/322 ,  F04C29/0085 ,  H02K1/276

摘要： A rotor 6 includes a rotor core 610, and a plurality of magnets 620 arrayed on the rotor core 610 in its circumferential direction at center angles of equal intervals. Given an axial length L of the rotor core 610, a radial length D of the rotor core 610, and a thickness t of the magnets 620, the following relationships are satisfied: L/D (1×K×)/(L 1.5 ×D×P) (wherein P is the number of poles, K is 100000, and N is a factor that depends on the output of the compressor). Thus, while torque decreases due to large reduction in rotor layering thickness is suppressed, a small-size, lightweight and low-priced compressor motor is provided.

摘要翻译： 转子6包括转子芯体610和在转子芯体610上沿其圆周方向以等间隔的中心角度排列的多个磁体620。 给定转子芯610的轴向长度L，转子芯610的径向长度D和磁体620的厚度t，满足以下关系：L / D <0.7和t（1×K× ）/（L 1.5×D×P）（其中P是极数，K是100000，N是取决于压缩机的输出的因子）。 因此，由于转子层叠厚度的大幅降低而扭矩减小，因此提供了小型，重量轻，价格低廉的压缩机电动机。