Low-noise stator sheet and rotor sheet of 12-pole three-phase asynchronous motor
A rotor punching, three-phase asynchronous technology, applied in asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problems of not well determined slot fit values, strong electromagnetic noise, high thermal load, etc., to reduce heat Effects of load and copper consumption, cost reduction, and electromagnetic noise reduction
Inactive Publication Date: 2014-04-02
SHANDONG HUALI ELECTRIC MOTOR GRP
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Problems solved by technology
In the current small 12-pole three-phase asynchronous motors, there is generally no special slot matching, and the number of stator and rotor slots is mostly borrowed from the existing 6-pole motor. The slot matching is 36 / 28, 36 / 33, 48 / 44, 54 / 44, etc., when applied to a 12-pole motor, it will generate strong electromagnetic noise, high thermal load, and a large amount of copper
Due to the lack of 12-pole motor applications, the optimal slot matching value has not been well determined, and the slot matching value is still in the exploratory stage
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] A low-noise stator and rotor punching sheet for a 12-pole three-phase asynchronous motor. The structure of the stator punching sheet is shown in the appendix figure 1 As shown, it is in the shape of a ring, and the inner ring of the ring-shaped punching body is provided with embedding grooves 1, and the number of embedding grooves is 54, which are evenly distributed along the center of the punching body. as attached figure 1 As shown, the wire embedding groove 1 has a closing opening on the inner ring of the punch body, and the wire embedding groove is in the shape of Ω.
[0014] For the structure of the rotor punch, see the attached figure 2 As shown, the rotor punching body is in the shape of a ring, and the outer ring of the ring-shaped punching body is provided with notches 2, and the number of notches is 58, which are evenly distributed a...
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The invention relates to a stator sheet and a rotor sheet of a motor. In order to solve the technical problem of electromagnetic noise of a 12-pole three-phase asynchronous motor, the invention provides the low-noise stator sheet and the rotor sheet of the 12-pole three-phase asynchronous motor, which comprises a stator sheet body and a rotor sheet body, wherein the stator sheet body is in an annular shape; 54 line inserting grooves are arranged on an inner ring of the annular sheet body; the rotor sheet body is in an annular shape; 58 notches are arranged on an outer ring of the n annular sheet body. Through improving slot coordination of the stator and the rotor of the motor, the electromagnetic noise of the motor can be reduced, and under the condition of meeting the requirement of starting performance and unchanged iron length of the motor, the heat load and the copper usage of the motor are reduced, and the motor cost is reduced.
Description
technical field [0001] The invention relates to a stator and rotor stamping of a motor, in particular to a low-noise stator and rotor stamping of a 12-pole three-phase asynchronous motor. Background technique [0002] Electromagnetic noise is one of the main noise sources of electric motors. Electromagnetic noise is particularly prominent in motors with a large number of poles. If not designed properly, electromagnetic noise will be very obvious and become the most important noise source over other noises (ventilation and mechanical noise). . The electromagnetic noise of the motor is mainly due to the stator vibration generated under the action of the radial electromagnetic force wave, which causes the airborne noise caused by the pulsation of the surrounding air. Among them, reasonable and appropriate selection of motor stator and rotor slot fit is an important means to control electromagnetic noise. In the current small 12-pole three-phase asynchronous motors, there is g...
Claims
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IPC IPC(8): H02K1/16H02K1/22H02K17/12
Inventor 尹志华李海成鞠大鹏
Owner SHANDONG HUALI ELECTRIC MOTOR GRP