Lightweight high-protection three-phase asynchronous motor
A three-phase asynchronous, high-protection technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of poor detachability, low protection level, and low service life, and achieve low cost, high protection level, and improved use. The effect of longevity
Inactive Publication Date: 2017-06-30
GUIYANG AVIATION MOTOR
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Problems solved by technology
[0004] However, there is currently no drive motor specially developed for light electric vehicles or electric mechanisms (with a full load mass of no more than 1t and a maximum speed of no more than 40km / h). Conventional small three-phase asynchronous motors with low density and low service life, or three-phase asynchronous motors with complex structure, large volume and poor disassembly
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[0018] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0019] This light-duty high-protection three-phase asynchronous motor includes a stator assembly 2 and a rotor assembly 4 arranged in a casing, and the casing is composed of a casing 3 and a front end cover 5 and a rear end cover 7 respectively fixed at both ends of the casing 3 by screws 6 , the stator assembly 2 is fixed in the casing 3, the rotor assembly 4 includes an iron core part 11 and a rotating shaft 9 passing through the iron core part 11, and the rotating shaft 9 is respectively supported on the front end cover 5 and the second bearing 13 through the first bearing 1 and the second bearing 13. on the rear end cover 7; a cover plate 8 is fixed on the rear end cover, and the stator assembly 2 includes three symmetrical windings, and a high-temperature-resistant insulating structure not lower than H level is provided between each two windings,...
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The invention discloses a light-duty high-protection three-phase asynchronous motor, which comprises a casing, a front end cover and a rear end cover respectively fixed at two ends of the casing by screws, a stator assembly fixed in the casing, a rotor assembly arranged in the casing, and a rotor assembly It includes an iron core part and a rotating shaft passing through the iron core part. The rotating shaft is respectively supported on the front end cover and the rear end cover through the first bearing and the second bearing; the rear end cover is fixed with a cover plate, which is characterized in that: The stator assembly includes three symmetrical windings, and a high-temperature-resistant insulation structure is provided between each two windings; the stator assembly is impregnated with high-temperature-resistant insulating varnish as a whole; the surface of the iron core part is also sprayed with high-temperature-resistant insulating varnish; In addition, a more reasonable structure is preferred. Through the above means, the three-phase asynchronous motor of the present invention has the advantages of simple structure, high protection level, good insulation, small volume, light weight, repeatable disassembly, long service life and high power density.
Description
technical field [0001] The invention relates to the field of motors, in particular to a light-duty high-protection three-phase asynchronous motor. Background technique [0002] Three-phase asynchronous motors have the advantages of large torque, high power density, reliable operation, and high control efficiency, and are currently a hot spot in motor research and development. [0003] At present, the working methods of large three-phase AC asynchronous motors are basically the same, and all of them can be started directly, but they all need to use external equipment or their own components to start with reduced voltage. After starting, after the three-phase symmetrical alternating current is connected, a rotating magnetic field will be generated, thereby forming an electromagnetic torque on the motor shaft, driving the motor to rotate, and the direction of rotation of the motor is the same as that of the rotating magnetic field. Because such a motor has the characteristics ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K3/34H02K3/02H02K3/28H02K5/16H02K11/21
CPCH02K3/345H02K3/02H02K3/28H02K5/161H02K2203/06
Inventor 袁光伟袁焱
Owner GUIYANG AVIATION MOTOR