Stator assembly and motor having the same

Abstract

The invention discloses a stator assembly and a motor having the same. The upper stator assembly includes a stator core and a stator winding. The stator core has a plurality of stator slots, and the plurality of stator slots are arranged along In the circumferential direction of the stator core, in the circumferential direction of the stator core, the first winding of each phase of the stator winding includes a plurality of first winding parts connected end to end in sequence, and the first winding of each phase of the stator winding The secondary winding includes a plurality of second winding parts connected end to end in sequence. Therefore, by setting jump sections with different spans, the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle can be suppressed, and finally the potential balance between the sub-circuits can be realized, which can suppress the internal circulation of the stator winding and reduce the The effect of temperature rise, and while suppressing the circulating current, it can suppress the harmonic electromagnetic excitation generated by the circulating current, and greatly suppress vibration and noise.

Description

technical field [0001] The invention relates to the technical field of motor manufacturing, in particular, to a stator assembly and a motor having the same. Background technique [0002] In the related technology, the stator assembly of the motor is wave-wound, from the outermost layer to the innermost layer, and then the reverse wave is wound to the outermost layer. From the analysis of the manufacturing process and the mass manufacturer, the flat wire armature that needs to be produced There are many types, and both ends of the axial direction need to be welded, and there are many solder joints. In addition, after the flat wire is offline, it is difficult to fix it accurately, the production cost is high, and the manufacturing process is difficult. From the analysis of the electrical connection, the wave winding form has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easily broken down, resulting in a short...

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Problems solved by technology

[0002] In the related technology, the stator assembly of the motor is wave-wound, from the outermost layer to the innermost layer, and then the reverse wave is wound to the outermost layer. From the analysis of the manufacturing process and the mass manufacturer, the flat wire armature that needs to be produced There are many types, and both ends of the axial direction need to be welded, and there are many solder joints. In addition, after the flat wire is offline, it is difficult to fix it accurately, the production cost is high, and the manufacturing process is difficult.

From the analysis of the electrical connection, the wave winding form has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easy to break down, resulting in a short circuit and causing the motor to fail.

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