Stator assembly of automotive engine or driving motor

Abstract

The invention relates to a stator assembly of an automotive engine or a driving motor. The stator assembly comprises a stator iron core and multiple phases of windings, and is characterized in that each phase of winding is composed of multiple sets of rectangular copper wire base winding elements, a rectangular copper wire cross connection element and a rectangular copper wire outlet element, wherein the multiple sets of rectangular copper wire base winding elements are connected end to end and sequentially inserted into winding grooves of the stator iron core, and the rectangular copper wire cross connection element and the rectangular copper wire outlet element are connected between the first set of the rectangular copper wire base winding elements and the last set of the rectangular copper wire base winding elements in series. The middle portion of the base winding element body I of each rectangular copper wire base winding element and the middle portion of the base winding element body II of the rectangular copper wire base winding element are twisted together, and the straight sides of the two element bodies located on the same side are attached side by side. A certain span is formed between the straight side a of each element body on the front side and the straight side b of the corresponding element body on the rear side. The straight side a of each element body is inserted into the first layer position of the corresponding winding groove and the second layer position of the corresponding winding groove. The straight side b of each element is inserted into the third layer position of another corresponding winding groove and the fourth layer position of another corresponding winding groove. The defect that the sides of the elements are easily scratched through the bending method of a structure welding end of an existing rectangular copper wire stator assembly, and therefore defective products are formed after insulating enameled leather falls is overcome, power generation capacity and power generation efficiency of the engine are improved, and temperature rise and noise are reduced.

Description

technical field [0001] The invention relates to a stator assembly of a generator or drive motor for a vehicle. Background technique [0002] The stator assembly of a vehicle generator or drive motor is a very important component of an electric motor product. The welding end of the existing rectangular copper wire stator assembly structure is bent in the following way: the sides of two adjacent components are bent in opposite directions, that is, the sides of the first layer and the second layer of the winding slot inserted into the stator core are bent in opposite directions, and the sides of the second layer are bent in opposite directions. The bending direction of the element side of the third layer is opposite to that of the element side of the third layer and the bending direction of the element side of the fourth layer is opposite. It has the defect that the edge of the component is easily scratched during the bending process, causing the insulating paint to fall off a...

AI Technical Summary

Problems solved by technology

It has the defect that the edge of the component is easily scratched during the bending process, which leads to the peeling off of the insulating paint and the formation of defective products

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