Random winding of high voltage motor

A high-voltage electricity and winding technology, which is applied to electric components, manufacturing of motor generators, and the shape/style/structure of winding conductors. Effect

Inactive Publication Date: 2011-11-23
FUSHUN COAL MINE MOTOR MFG
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Problems solved by technology

[0003] For motors used in coal mines, the overall size of the unit is determined according to the thickness of the underground coal seam. The outer size of the motor is limited by the assembly space of the unit; on the other hand, the rated power of the motor continues to increase, and the rated volt

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  • Random winding of high voltage motor
  • Random winding of high voltage motor

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Embodiment Construction

[0015] The present invention is specifically described below in conjunction with accompanying drawing;

[0016] In terms of electromagnetic scheme design: on the one hand, we change the formed embedded wire winding into loose embedded wire winding embedded wire, such as figure 1 As shown in the structure, the original rectangular slot 1 is changed to pear-shaped slot 2 to increase the cross-sectional area of ​​the stator teeth and reduce the magnetic flux density of the stator teeth; on the other hand, as image 3 The double squirrel-cage rotor structure shown is changed to Figure 5 For the single squirrel-cage rotor structure shown, the groove shape of the rotor blade is also determined by Figure 4 The groove shape of the double squirrel cage rotor shown is changed to Image 6 The single squirrel-cage rotor punching groove structure shown above, or other single squirrel-cage structures, such as convex shape, etc., can greatly reduce the magnetic flux density of the rotor ...

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Abstract

The invention relates to the field of motor manufacturing, and discloses a random winding of a high voltage motor. A high voltage design with requirements on small motor volume and high power is realized. A stator slot is pear-shaped. A rotor adopts a single-squirrel cage slot. Rotor conducting bars adopt single-squirrel cage rectangular and convex drawn copper conducting bars. A stator random winding insulating process for the motors of 20kW and the stator random winding insulating process for the motors of 20kW and above are adopted. The random winding of the high voltage motor has the advantages of: 1, relatively more remarkably reducing the volume of the motor and achieving good effects by improving an insulating structure of the high voltage motor with the small volume and relativelyhigher power; 2, making the electromagnetic scheme design and structure of the motor more rational and simpler and functioning in optimizing the design; and 3, reducing a plurality of steps of molding the winding and saving raw materials. Therefore, the random winding of the high voltage motor has relatively higher economy.

Description

technical field [0001] The invention relates to the field of motor manufacturing, and discloses a high-voltage motor loosely embedded winding. Background technique [0002] Motors with a rated voltage exceeding 3kV are called high-voltage motors. Recently, many coal mining equipment have gradually increased from 660V and 1140V to 3.3kV. The increase in rated voltage will inevitably increase the insulation thickness of the stator winding to meet the insulation between turns and ground. The requirements of the test, so that the size of the motor increases, so that it cannot meet the size requirements of the user. Therefore, it is necessary to optimize the design of the electromagnetic calculation and insulation structure of the motor. [0003] For motors used in coal mines, the overall size of the unit is determined according to the thickness of the underground coal seam. The outer size of the motor is limited by the assembly space of the unit; on the other hand, the rated po...

Claims

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Application Information

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IPC IPC(8): H02K3/12H02K3/34H02K15/12H02K15/085C08L79/08
Inventor 肖红伞庆相李卫东
Owner FUSHUN COAL MINE MOTOR MFG
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