Gree Electric Appliances, Inc. of Zhuhai

Min Wang

Yong Xiao

Bin Chen

Yusheng Hu

Bo Zhou

Mingzhu Dong

Jinfei Shi

Chunjie Wang

Quanfeng Li

Qinghui Lin

Disclosed are a rotor and a permanent magnet motor. The rotor includes a rotor core, at least two first permanent magnets and at least two second permanent magnets. A coercivity of each first permanent magnet is different from a coercivity of each second permanent magnet, the at least two first permanent magnets and the at least two second permanent magnets are arranged in an axial direction in magnetic steel slots of the rotor core. One of the first permanent magnets and one of the second permanent magnets are arranged to be connected in series in a radial direction of the rotor core in one slot to form a permanent magnet pole. A consequent pole is formed between every two adjacent permanent magnet poles, and the permanent magnet pole forms a magnetic circuit passing through the consequent pole.

Rotor and permanent magnet motor

A motor rotor structure including a rotor core. Multiple first permanent magnet slots are disposed in the rotor core in a circumferential direction. At least one second permanent magnet slot is disposed between every two adjacent first permanent magnet slots; each of the first permanent magnet slots and an adjacent second permanent magnet slot thereof are spaced a preset distance apart. Between two kinds of permanent magnets having different coercivities, a first kind of permanent magnet is mounted in each of the first permanent magnet slots and a second kind of permanent magnet is mounted in the second permanent magnet slot. When identical polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a more-magnetic-pole state. When contrary polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a fewer-magnetic-pole state.

Motor rotor structure and permanent magnet motor

Some embodiments of the present disclosure provide an air sweeping assembly, an air regulating device and an air conditioner. The air sweeping assembly includes: a rotation shaft (), the rotation shaft () being provided with blades () thereon; a driving device, the driving device including a fixing portion () and a driving portion disposed on the fixing portion (); the driving portion being drivingly connected with the rotation shaft (), and the driving portion being configured to drive the rotation shaft () to rotate; and a first position limiting member () disposed on the fixing portion (); the first position limiting member () being configured to define an initial position of the rotation shaft () in a circumferential direction.

Air sweeping assembly, air regulating device and air conditioner

Disclosed is a motor rotor structure including a rotor core. A plurality of radial slots each are in the rotor core along a circumferential direction, and a first flux barrier slot is provided between every two adjacent radial slots. Two kinds of permanent magnets having different coercivities mounted in each radial slot. The two kinds of permanent magnets having different coercivities are distributed along a radial direction of the rotor core. The two kinds of permanent magnets having different coercivities are both magnetized along a tangential direction of the rotor core. A second flux barrier slot is provided between the two kinds of permanent magnets having different coercivities.

The present invention discloses a motor rotor and a permanent magnet motor. The motor rotor includes a rotor core and a plurality of magnetic poles provided in the rotor core, wherein each magnetic pole includes a first permanent magnet, a second permanent magnet and a third permanent magnet; the first permanent magnet being arranged on a central position of the magnetic pole on which said first permanent magnet is located, the second permanent magnet being arranged at two sides of the first permanent magnet, the third permanent magnet being arranged at one side of the second permanent magnet far away from the first permanent magnet; the coercivity of the first permanent magnet is smaller than that of the second permanent magnet and that of the third permanent magnet; and the third permanent magnet is arranged on a q axis of the motor.

Motor rotor and permanent magnet motor

The present disclosure discloses a motor rotor and a permanent magnet motor. The motor rotor includes a rotor core and a plurality of magnetic poles in the rotor core. The magnetic pole includes a first, a second, and a third permanent magnets, and the size relationship of the first, the second and the third permanent magnets in the cross section of the rotor core meets m/2&#x3e;H1*Hcj1*L1/[(H2*Hcj2*L2+&#xbd;H3*Hcj2*L3)]&#x3e;m/10, wherein m is a multiple of the motor flux adjustment range; L1 is the length of the first permanent magnet; H1 is the width of the first permanent magnet; Hcj1 is the intrinsic coercivity of the first permanent magnet; L2, H2 and Hcj2 are the length, the width and the intrinsic coercivity of the second permanent magnet, respectively; L3 H3, Hcj3 are the length, the width, and the intrinsic coercivity of the third permanent magnet, respectively.

Growing community of inventors

Zhuhai, China

Min Wang