Harness, Dickey & Pierce, P.L.C.
Rotor and a motor and compressor comprising the rotor
The invention relates to a rotor and a motor and compressor comprising the rotor. The rotor comprises a rotor core defining an outer periphery, a bore concentric with a center of the rotor core, a plurality of magnet slots positioned on the outer periphery, and a plurality of oil holes located radially outward from the center between the bore and the magnet slots. Each oil hole includes a body portion and at least one projected portion. The projected portions are located radially outward from the body portions and positioned between the body portions and the magnet slots. The projected portions may increase the contact area of the compressor oil with the rotor core to effectively cool down the rotor core. Another advantage of the projected portions may be to further cool down the magnets in the magnet slots. Cooling the magnets may protect against their demagnetization.
Emerson Electric Co.
H H
H02K H02K
inventional inventional
Pingshan Xin Yan Xin
Cao Li Zhuang Li