| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310158000 | Universal (A.C. or D.C.) | 9 |
| 20090302704 | ELECTRIC MOTOR - A universal motor has a stator and a rotor. The stator has stator core and a stator winding. The stator core has a yoke with two ends and two equivalent salient poles formed at the ends of the yoke respectively. The stator winding is wound on the yoke. | 12-10-2009 |
| 20100072851 | ENGINE COOLING SYSTEM AND MOTOR THEREFORE - An engine cooling system, comprising a fan unit, cooling pipes and a coolant tank, the coolant tank, the cooling pipes and cooling channels of the engine being connected together and forming a cooling cycle, the fan unit being used to cool the cooling pipes and the coolant therein; wherein the fan unit comprises a motor and fan blades driven by the motor, the motor comprising a stator and a rotor rotatable mounted confronting the stator; the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator; the windings being wound by aluminium cored wire that has a electrical insulation film around its peripheral surface. | 03-25-2010 |
| 20100117478 | ELECTRIC MOTOR - A universal motor has a stator and a rotor installed in the stator. The stator comprises a pair of stator segments. Each segment has a yoke with first and second ends, a pole and a neck connecting the pole to the first end of the yoke. The second end of each yoke is connected with the first end of the other yoke. A pair of pre-formed windings are mounted on respective poles of the stator segments. | 05-13-2010 |
| 20100156229 | UNIVERSAL MOTOR - A universal motor comprises a stator and a rotor rotatably installed in the stator. The stator comprises a stator core having a yoke, n primary poles with windings wound thereon and n auxiliary poles. The primary poles and auxiliary poles being alternately arranged on the radially inner side of the yoke in a circumferential direction thereof. When the windings are electrified, n primary magnetic poles and n auxiliary magnetic poles are formed at the primary poles and auxiliary poles respectively, n being an integer greater than 1. All the primary magnetic poles have the same polarity and the polarity of each auxiliary magnetic poles is opposite the polarity of the primary magnetic poles. | 06-24-2010 |
| 20100295404 | MOTOR - A motor comprises: a stator having a stator core and field windings; brush gear including a plurality of brushes, a rotor comprising a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft adjacent the rotor core and rotor windings wound about teeth of the rotor core and connected to the commutator. The stator core comprises a yoke, 2P primary poles about which the field windings are wound, and 2P auxiliary poles. A control device controls the electrical connecting state of the field windings and the brushes so that 2P or 4P magnetic poles are selectively formed on the stator when the field windings are electrified. P is an integer equal to or greater than 1. | 11-25-2010 |
| 20110043067 | UNIVERSAL MOTOR - A universal motor has a rotor and a stator. The stator comprises a pair of symmetrical C-shaped stator cores and two windings respectively wound on the stator cores. Each stator core comprises a yoke and a pair of poles extending from opposite ends of the yoke. The windings are wound on the yokes. Each pole has a curved surface and the surfaces of the poles cooperatively form an opening. The rotor is rotatably received in the opening. | 02-24-2011 |
| 20110115329 | Universal Motor - A universal motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and winding wound on the stator core. The stator core has an E-shape cross section and comprises a main part and three extension parts extending perpendicularly from the main part. Each extension part has an arc surface. The arc surfaces of the extension parts cooperatively form a space into which the rotor is received. | 05-19-2011 |
| 20110260569 | Electric Motor - An electric motor has a stator and a rotor magnetically coupled to the stator. The rotor has a shaft, a rotor core fixed to the shaft and having a plurality of teeth, a commutator fixed to the shaft adjacent the rotor core and having a plurality of segments, and rotor winding units wound about the teeth and connected to the segments. Brushes arranged in sliding electrical contact with the commutator transfer power to the rotor. Each of the rotor winding units has at least two subcoils directly connected in series to each other and separated from each other by at least one tooth. An initial subcoil and a final subcoil of each rotor winding unit are respectively directly connected to two adjacent segments. | 10-27-2011 |
| 20120025656 | UNIVERSAL MOTOR - A universal motor includes a wound rotor and a stator. The stator has stator windings and a stator core. The stator core has at least two poles with the stator windings wound thereon and a yoke connecting the poles. Each pole has a neck and a pole shoe forming a continuous pole arc facing the rotor. The ratio of the diameter of the rotor to the width of the stator core measured across the poles is between 0.65˜0.95. | 02-02-2012 |
