Abstract: Three-phase asynchronous motor, comprising a housing and a stator assembly, which is fixedly arranged in the housing and is wound with coil, and further comprising a rotating shaft and a plurality of rotor punches, the shape and size of some of the rotor punches are the same, the rotor punches are sleeved and fixed on the rotating shaft, and located in holes of the stator assembly, a plurality of rotor slots are opened on the rotor punches, and shape and size of the all the rotor slots are the same. The rotor slot comprises a first, a second and a third slot portion. The first and the third slot portion are respectively located at both ends of the second slot portion. The first s and the third slot portion are semicircular; the second slot portion is in the shape of an isosceles trapezoid. The application discloses a speed-regulated water pump.

Abstract: The present invention provides a drive device including a drive motor. The drive motor includes an end cover, a motor housing, a stator, a rotor, a motor shaft, and a bearing. The drive motor further includes a casing and a first heat-dissipating fan used for dissipating heat for the motor housing. The casing is fixedly mounted on a side of the end cover to contain the motor housing into a chamber formed by the casing. The casing and the motor housing are spaced apart at certain intervals to form a gap between the casing and the motor housing for air flow to pass through. The first heat-dissipating fan is connected to the end of the motor shaft away from the end cover to rotate with the motor shaft. The casing is provided with an air inlet and an air outlet for air flow to pass through.

Abstract: The present invention provides an electric water pump including a drive motor. The drive motor includes a cylinder-shaped motor housing, a stator, a rotor, a motor shaft, and an end cover. The motor housing is fixedly mounted on a side of the end cover. The side of the end cover is also fixedly provided with a cylinder-shaped casing, wherein the motor housing is positioned in the casing. A central axis line of the motor housing coincides with a central axis line of the casing. Another side of the end cover is provided with a pump body having a chamber. An end of the motor shaft away from the end cover is fixedly provided with a heat-dissipating fan, an end of the casing close to the end cover is provided with a first air inlet, and a rear end away from the casing is provided with a first air outlet.

Abstract: The present invention provides a drive device including a drive motor. The drive motor includes an end cover, a motor housing, a stator, a rotor, a motor shaft, and a bearing. The drive motor further includes a casing and a first heat-dissipating fan used for dissipating heat for the motor housing. The casing is fixedly mounted on a side of the end cover to contain the motor housing into a chamber formed by the casing. The casing and the motor housing are spaced apart at certain intervals to form a gap between the casing and the motor housing for air flow to pass through. The first heat-dissipating fan is connected to the end of the motor shaft away from the end cover to rotate with the motor shaft. The casing is provided with an air inlet and an air outlet for air flow to pass through.

Abstract: The present invention provides an electric water pump including a drive motor. The drive motor includes a cylinder-shaped motor housing, a stator, a rotor, a motor shaft, and an end cover. The motor housing is fixedly mounted on a side of the end cover. The side of the end cover is also fixedly provided with a cylinder-shaped casing, wherein the motor housing is positioned in the casing. A central axis line of the motor housing coincides with a central axis line of the casing. Another side of the end cover is provided with a pump body having a chamber. An end of the motor shaft away from the end cover is fixedly provided with a heat-dissipating fan, an end of the casing close to the end cover is provided with a first air inlet, and a rear end away from the casing is provided with a first air outlet.

Abstract: A stainless steel motor with high weather resistance and high sealing performance comprises a cylindrical housing (11) made of a stainless steel material. A front end cover (12) is arranged at one end of the cylindrical housing, and a rear end cover (13) is arranged at the other end of the cylindrical housing. A rotary shaft hole (12a) is provided in the front end cover. A rotary shaft sealing sleeve (12b) is arranged in the rotary shaft hole, and a rotor shaft (12) is sleeved in the rotary shaft sealing sleeve (12b). A first drainage structure is arranged on the front end cover, and a second drainage structure is arranged on the rear end cover. A first wire penetrating hole (11a) and a second wire penetrating hole (11b) are provided in the cylindrical housing.