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Pawl pole of automobile generator and its manufactura

A technology of automobile generator and manufacturing process, applied in the direction of manufacturing tools, manufacturing motor generators, and other manufacturing equipment/tools, etc., can solve problems such as affecting generator power, inclusion chemical composition, poor electromagnetic performance, etc., and achieve finished dimensional accuracy. High, high dimensional accuracy, the effect of reducing the cost of the mold

Active Publication Date: 2007-11-21
JIANGSU LONGCHENG PREC FORGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Precision casting: The claws produced by this process are extremely prone to defects such as shrinkage cavities, looseness, inclusions, and chemical composition instability, which lead to increased reluctance and poor electromagnetic performance, which affects the power of the generator and cannot adapt to the volume of today's automotive generators. The development trend of shrinking and increasing power, moreover, casting is easy to produce hard spots, and it is not easy to machine
[0005] 2. Stamping process: This process must use large-scale forging equipment, which requires a large initial investment, and this process cannot produce claw poles with yokes, and an additional yoke must be equipped, resulting in an assembly air gap and increased magnetic resistance, which affects the generator. power
However, this process requires two heatings, and the production cost is relatively high

Method used

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  • Pawl pole of automobile generator and its manufactura
  • Pawl pole of automobile generator and its manufactura
  • Pawl pole of automobile generator and its manufactura

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Embodiment Construction

[0030] As shown in Fig. 1 and Fig. 2, the automobile generator claw pole of the present invention has a base plate 1, six bird's beak-shaped claws 2 are evenly distributed on the base plate 1, and a yoke 3 is arranged in the middle of the base plate 1, On the circumference of the yoke 3 are evenly distributed six insulating varnish drainage grooves 4 , and on the bottom of the yoke 3 are distributed six coil anti-rotation protrusions 5 and six lead-out grooves 6 for insulating wires.

[0031] The manufacturing process of the automobile generator claw pole of the present invention as shown in Figure 3 has the following process steps:

[0032] a. Blanking: select the raw material 08# low carbon steel with good electromagnetic performance, and use a sawing machine to saw the raw material into raw material parts as shown in Figure 4 according to the weight requirements;

[0033] b. Heating: Put the raw material into the heating furnace and heat it to 1050℃~1100℃; after repeated te...

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PUM

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Abstract

The present invention relates to one kind of of automobile generator and its manufacture. The pawl pole has one bottom plate, one magnetic yoke on the bottom plate, six or eight insulating varnish conducting slots distributed homogeneously on the circumference of the magnetic yoke, six or eight lugs for preventing the rotation of coil, and six or eight insulated wire leading out slots in the bottom of the magnetic yoke. The manufacture of the pawl pole includes the steps of: cutting material, heating, upsetting, pre-forging, finish forging, cutting edge, magnetically annealing, cold shaping, and finishing machining. The manufacture process has low apparatus investment, low mold cost, low heating cost, high output and high product quality. The AC generator with the pawl poles of the present invention has induced electromotive force waveform of quasi-sinusoid wave and great generating power.

Description

Technical field [0001] The invention relates to a claw pole for an automobile generator and a manufacturing process thereof. Background technique [0002] Modern cars have generally adopted electrical components such as air conditioners, electric injection engines, electronically controlled doors and windows, and electrically adjustable seats, and the power consumption has risen sharply. The alternator is the key component of the car, which is responsible for the power supply of the car. The configuration of the car is different, the power consumption demand is different, the alternator is different, and the corresponding claw poles are different. The alternator is mounted next to the engine and is turned by the engine to convert mechanical energy into electrical energy. The alternator is composed of two parts, the stator winding and the rotor winding. The three-phase stator windings are distributed on the housing according to the difference of 120 degrees from each other. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23P23/04H02K15/00B21K1/76
CPCB21K1/28
Inventor 庄晓伟徐进刘强
Owner JIANGSU LONGCHENG PREC FORGING CO LTD
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