Stator of alternating-current generator and winding method thereof

Abstract

The invention discloses a stator of an alternating-current generator and a winding method thereof. The stator comprises an iron core and a stator winding wound on the iron core, wherein 108 rectangular grooves are formed on the iron core at equal intervals; groove insulating paper which is matched with each rectangular groove is paved in the rectangular groove along the wall of the rectangular groove; the rectangular grooves are distributed in four layers according to inner stator coils, including an inner upper layer, an inner lower layer, an outer lower layer and an outer upper layer in sequence from inside to outside along the radial direction of the iron core; the stator winding is a three-phase winding; the number P of magnetic pole pairs is equal to 6; the quantity q of grooves on each phase at each pole is equal to 3; the coil of each phase can be partitioned into three coil groups; and the stator coil of each phase comprises thirty-three upper coils, thirty-three lower coils, three middle spanning coils, two connection spanning coils and two winding outgoing lines. According to the invention, the problem of conflict between the generator size and the generating amount in the prior art is solved; and the stator has the characteristics of compact structure and high output power, and is suitable for other generators needing high power such as automobiles and the like.

Description

technical field [0001] The invention relates to a stator of an alternator, in particular to a stator of an alternator used in automobiles with compact structure and high output power and a winding method thereof. Background technique [0002] With the rapid development of automobile technology, the number of electric equipment on the automobile is increasing day by day, so the electricity consumption of the automobile is getting higher and higher, and the power generation power requirement of the automobile generator is also higher and higher. The increase in power will inevitably lead to However, the engine room of the current car is becoming smaller and more crowded. In the limited space, the power generation of the existing generator can no longer meet this demand, so the contradiction between the volume of the generator and the power generation The problem has become a technical problem in the development of high-power generators. At present, under the premise of limitin...

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Problems solved by technology

[0002] With the rapid development of automobile technology, the number of electric equipment on the automobile is increasing day by day, so the electricity consumption of the automobile is getting higher and higher, and the power generation power requirement of the automobile generator is also higher and higher. The increase in power will inevitably lead to However, the engine room of the current car is becoming smaller and more crowded. In the limited space, the power generation of the existing generator can no longer meet this demand, so the contradiction between the volume of the generator and the power generation The problem has become a technical problem in the development of high-power generators. At present, under the premise of limiting the volume of the generator, the most effective way to increase the output power is to adjust the winding of the stator.

[0003] A stator for a vehicle alternator is disclosed in the prior art, which can achieve compact design, high power and low noise. The stator core is equidistantly provided with 96 rectangular slots, and the stator winding is composed of multiple enamelled The conductor segments of flat copper wires are formed, and the conductor segments are connected to each other in different layers of different rectangular slots to form a winding with high space factor and low resistance; but once this winding method is used for the alternator of the 24V system, it will The power generation of the generator is too low (the stator adopts star connection) or the zero current speed of the generator is too high, and the power generation is too low at low speed (the stator adopts delta connection)

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