Rotor punching plate of motor
A technology for rotor punching and motors, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problems of rotor punching that cannot improve motor efficiency, large electromagnetic noise, and large starting current, and achieve The effect of large torque, low electromagnetic noise and low starting current
Inactive Publication Date: 2011-01-26
WUXI ZHONGDA MOTORS
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Problems solved by technology
At present, the most used Y2 series motors on the market, the rotor punching can no longer achieve the purpose of improving the efficiency of the motor, and in the long-term use process, it is found that it still has defects such as large electromagnetic noise, large starting current, and small torque. The center height is 132-2 pole motors, the above defects are more prominent
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Embodiment Construction
[0011] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0012] The present invention only needs to change the stamping die of the rotor punching sheet, and punch out the rotor punching body 1 on the punching machine with a 50WW470 cold-rolled silicon steel sheet, and 28 grooves 2 are arranged on the rotor punching body 1 . The proposal of the present invention does not change the original assembly mode of the motor.
[0013] In the groove type of the rotor punching: the rotor slot width b02 is 1 mm; the rotor slot width 1 br1 is 2.6 mm; the rotor slot width 2 br3 is 5.8 mm; the rotor slot bottom width br4 is 2.2 mm; zs2 is 35 degrees; rotor slot height hr0 is 0.8mm; rotor slot height 1 hr12 is 7 (mm); rotor slot height 2 hr3 is 15.9mm.
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The invention relates to a rotor punching plate of a motor. The rotor punching plate comprises a rotor punching plate body, and the rotor punching plate body is provided with 28 rotor punching plate grooves. In the rotor punching plate grooves, b02 is 1 millimeter; br1 is 2.6 millimeters, br3 is 5.8 millimeters, and br4 is 2.2 millimeters; zs2 is 35 degrees; hr0 is 0.8 millimeter; hr12 is 7 millimeters; and hr3 is 15.9 millimeters. Only a punching die for the rotor punching plate is changed, but the original assembly mode of the motor is not changed; the punching plate used in a rotor core with efficient motor center height of 132-2 poles can improve the efficiency of the motor; and the punching plate has low electromagnetic noise, low starting current and large torque in long-term use.
Description
technical field [0001] The invention relates to a rotor stamping sheet of a motor, in particular to a rotor iron core with a central height of 132-2 poles of a high-efficiency motor. Background technique [0002] In today's society where global resources are scarce, people's awareness of energy conservation and emission reduction and low-carbon life is increasing day by day. The country is also vigorously promoting energy conservation and emission reduction, and improving the energy efficiency of electric motors is one of the ways to achieve this goal. At present, the electric motors widely used in the fields of industry, agriculture, commerce, construction and transportation, generally have defects such as low efficiency and high energy consumption, and cannot meet the requirements of high efficiency, energy saving and emission reduction. [0003] The rotor punch is a key component in the motor, and its material, inner circle size, outer circle size, slot shape size, and h...
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IPC IPC(8): H02K1/24
Inventor 张高锋黄标
Owner WUXI ZHONGDA MOTORS