Abstract: A centrifugal blower includes an electric motor, a centrifugal impeller driven by the motor, a diffuser mounted to the motor and disposed between the motor and the centrifugal impeller, and a casing mounted to the diffuser. The centrifugal impeller is received in a chamber defined by the diffuser and the casing. the casing defines an opening facing the inlet of the centrifugal impeller. The diffuser has a plurality of passage walls, and a plurality of diffusing passages, each bounded by neighboring passage walls. The diffuser further has at least one mounting portion connected to one of the passage walls. A cross section of each of the diffusing passages is increased form an outer end to an inner end thereof and no throat is formed in each of the diffusing passages.

Abstract: A single phase permanent magnet brushless motor includes a stator and a rotor. The stator includes an outer housing, a stator core mounted in the outer housing, and windings wound around the stator core. The stator core includes a yoke and a plurality of poles extending inwardly from the yoke. The yoke is fixed to the outer housing by welding. Reliability of the present motor is enhanced.

Abstract: A kitchen appliance has a base, a driven mechanism rotatable relative to the base, and an electric motor with a stator and a rotor for driving the driven mechanism. The stator comprises a stator core with two primary stator poles with stator windings wound there on and two auxiliary stator poles. The stator windings are configured in such a way that primary magnetic poles with the same polarity are formed at the primary poles and induced magnetic poles with the same polarity which is opposite to the polarity of the primary magnetic poles are formed at the auxiliary poles when the motor is electrified.

Abstract: A universal motor includes a wound rotor and a stator. The stator has stator windings and a stator code. 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 motor to the width of the stator core measured across the poles is between 0.65˜0.95.

Abstract: A centrifugal impeller includes a cover, a base opposite the cover and a plurality of blades. The cover has an inlet. The plurality of blades surround the inlet and are arranged between and connect the cover and the base. Inlet edges of one end of the blades adjacent the center of the impeller define a cavity in communicate with the inlet. The dimension of the cavity gradually decreases along the direction from the cover towards the base.

Abstract: An electric motor has a rotor, a stator and brushes. 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 commutator segments. Each of the rotor winding units is connected to a pair of adjacent commutator segments. At least one of the rotor winding units has at least two coils connected in series. Each coil has at least two subcoils directly connected in series and separated from each other by at least one tooth. An initial subcoil and a final subcoil of each coil are respectively connected to a pair of segments.

Abstract: 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.

Abstract: A universal motor includes a stator and a rotor rotatably installed in the stator. The stator includes a stator core having a yoke, n primary poles with windings wound thereon and n auxiliary poles. The primary poles and auxiliary poles are 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.

Abstract: A motor has a stator and a rotor. The stator has 2P poles wherein P is an integer greater than one. The rotor has a shaft, a rotor core and a commutator fixed to the shaft. The commutator has m segments where m is an even integer greater than P. Every two adjacent segments are electrically connected by a winding unit so that the rotor winding comprises m winding units with at least one of the winding units comprising P coils connected in series; and each coil of each winding unit is directly connected to a corresponding two segments.

Abstract: Apparatus for driving a nozzle of a bidet toilet, has a base 1; a nozzle 2; a guide device 11, 12 formed on the base for guiding linear movement of the nozzle; a motion output device 7 having an output shaft 71; a driving wheel 3 attached to the output shaft and being rotatably driven with the output shaft; a pair of guide wheels 4,5 rotatably fixed relative to the base, and a non-toothed conveyer 6 wound around the driving wheel 3 and the guide wheels 4, 5 and fastened to the nozzle 2. Rotation of the driving wheel 3 causes linear movement of the nozzle 2.

Abstract: 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.

Abstract: A food waste disposer has a housing 12 defining a grinding chamber 14 having an inlet 16 and an outlet 18. A grinding mechanism including a shredder ring 20 and a grinding disc 22, is disposed within the grinding chamber 14. A liner 21, preferably of a plastics material, extends from the shredder ring 20 to the inlet 16. The liner 21 reduces the noise generated by the disposer when in use.

Abstract: A kitchen appliance has a base, a driven mechanism rotatable relative to the base, and an electric motor with a stator and a rotor for driving the driven mechanism. The stator comprises a stator core with two primary stator poles with stator windings wound there on and two auxiliary stator poles. The stator windings are configured in such a way that primary magnetic poles with the same polarity are formed at the primary poles and induced magnetic poles with the same polarity which is opposite to the polarity of the primary magnetic poles are formed at the auxiliary poles when the motor is electrified.

Abstract: An electric motor has a rotor, a stator and brushes. 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 commutator segments. Each of the rotor winding units is connected to a pair of adjacent commutator segments. At least one of the rotor winding units has at least two coils connected in series. Each coil has at least two subcoils directly connected in series and separated from each other by at least one tooth. An initial subcoil and a final subcoil of each coil are respectively connected to a pair of segments.

Abstract: 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.

Abstract: A motor comprises a stator and a rotor. The stator comprises 2P poles wherein P is an integer greater than one. The rotor comprises a shaft, a rotor core and a commutator fixed to the shaft. The commutator comprises m segments where m is an even integer greater than P. Every two adjacent segments are electrically connected by a winding unit so that the rotor winding comprises m winding units with at least one of the winding units comprising P coils connected in series; and each coil of each winding unit is directly connected to a corresponding two segments.

Abstract: 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.

Abstract: Apparatus for driving a nozzle of a bidet toilet, has a base 1; a nozzle 2; a guide device 11, 12 formed on the base for guiding linear movement of the nozzle; a motion output device 7 having an output shaft 71; a driving wheel 3 attached to the output shaft and being rotatably driven with the output shaft; a pair of guide wheels 4,5 rotatably fixed relative to the base, and a non-toothed conveyer 6 wound around the driving wheel 3 and the guide wheels 4, 5 and fastened to the nozzle 2. Rotation of the driving wheel 3 causes linear movement of the nozzle 2.

Abstract: A splash guard for an under the sink garbage disposal unit has a baffle which prevents splash back. The baffle has a membrane with a number of radially extending slits. Each slit has a pair of walls extending downwardly from the membrane forming a channel. One wall of each pair of walls has a lateral ledge or laterally displaced axial end forming a bottom to the channel. The other wall of each pair of walls is shorter in height so as to leave a gap between the second wall and the ledge of the first wall, thus forming a lateral opening at the bottom of the channel. Thus the slits form passageways through the membrane without having direct or aligned openings.