Efficient shielding electric pump with low eddy current loss
A shielded electric pump and eddy current loss technology, which is applied to pumps, pump devices, electromechanical devices, etc., can solve the problems of shielded electric pump energy consumption and eddy current loss that have not been completely solved, and achieve significant energy saving effects. The effect of reducing the magnetic gap and increasing the magnetic flux density
Active Publication Date: 2020-09-01
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
However, whether it is a non-magnetic shielding sleeve or a magnetic shielding sleeve, since most of them are metal materials, the eddy current loss generated in the shielding sleeve due to the alternating magnetic field of the motor has not been completely eliminated, that is, the energy consumption of the shielded electric pump has no problem. be completely resolved
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[0025] Such as Figure 1-5 As shown, the present invention consists of pump housing 1, front end cover 2, motor housing 3, stator winding 4, stator core assembly 5, stator core 6, stator shielding sleeve 7, rotor assembly 8, rotor core 9, rotor The shielding sleeve 10, the rotor winding 11, the rotor shielding sleeve end plate 12, the thrust disc 13, the rotating shaft 14, the rear end cover 15, and the O-ring 16 are formed.
[0026] The stator core assembly 5 is composed of a stator core 6 , a stator winding 4 , and a stator shielding sleeve 7 , and is loaded into the motor housing 3 . The stator core 6 is made of 0.5mm thick silicon steel sheets punched and painted, and then laminated. The stator winding 4 is wound with enameled wires according to the designed winding form, and is dipped in varnish for insulation after being embedded in the punched slot of the stator core 6; the front end There are grooves in the cover 2 and the rear end cover 15 and an O-ring 16 is placed ...
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The invention belongs to the technical field of electric pumps, and particularly relates to an efficient shielding electric pump with low eddy current loss. An effective non-magnetic gap between a stator and a rotor can be reduced, and the magnetic flux density of a motor is improved. The electric pump consists of a pump shell, a front end cover, a motor shell, a stator winding, a stator iron coreassembly, a stator iron core, a stator shielding sleeve, a rotor assembly, a rotor iron core, a rotor shielding sleeve, a rotor winding, rotor shielding sleeve end plates, a thrust disc, a rotating shaft, a rear end cover and an O-shaped sealing ring, wherein the stator iron core assembly comprises a stator iron core, a stator winding and a stator shielding sleeve 7, and is arranged in the motorshell; the stator shielding sleeve is cylindrical and is pressed into the two ends of the front end cover and the rear end cover to be matched, connected and sealed with the O-shaped sealing ring; therotor assembly comprises a rotor core, a rotor winding, a rotor shielding sleeve, a rotor shielding end plate, a shaft and a thrust disc; and the rotor shielding sleeve is cylindrical, and the two ends of the rotor shielding sleeve are matched and sealed with the stainless steel rotor shielding end plates after the rotor shielding sleeve is pressed into the excircle of the rotor core.
Description
technical field [0001] The invention belongs to the technical field of electric pumps, in particular to a shielded electric pump with low eddy current loss and high efficiency. Background technique [0002] The currently widely used canned electric pump is a non-leakage pump with an integrated structure of the canned motor and the pump. Its most notable feature is that the inner surface of the stator and the outer surface of the rotor of the canned electric pump driving motor are provided with cylindrical shaped metal materials. shielding sleeve. The early shielding sleeves were made of non-magnetic materials, and the non-magnetic shielding sleeves actually increased the equivalent electromagnetic air gap between the stator and the rotor, which can reach 2-5 times the air gap of ordinary motors. The power factor of the shielded motor is 10 percentage points lower than that of a common motor with the same power and the same number of poles. [0003] In order to improve the ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K11/02H02K1/16H02K1/26F04D13/06
CPCH02K1/165H02K1/265F04D13/06H02K2213/03H02K2201/03
Inventor 安跃军李明邓文宇齐丽君王光玉孔祥玲李嘉欣郑雅良苗乐平高北荣袁静唐志英
Owner SHENYANG POLYTECHNIC UNIV