CN102751796B - Manufacturing method of multipolar internal stator structure used in miniature wind driven generator - Google Patents

Abstract

The invention relates to a multipolar internal stator structure used in a miniature wind driven generator, and a manufacturing method thereof. The multipolar internal stator structure comprises an annular stator yoke iron core, a solenoid-type coil, a stator support, a spindle sleeve, a generator shaft, a bearing and a plurality of stator tooth iron cores. The structure is manufactured by the following steps: 1) punching the plurality of stator tooth iron cores and six stator yoke iron core units; 2) winding solenoid-type coil segments; 3) forming the annular stator yoke iron core by mortise joints; 4) and inserting the plurality of stator tooth iron cores into the six solenoid-type coil segments, respectively, and mortising the plurality of stator tooth iron cores with the stator yoke iron core units, respectively, after the solenoid-type coil segments are connected, putting a whole into an injection mould and injecting a BMC molding compound, and solidifying to form a hard stator structure at a temperature of 140 DEG C and under a pressure of 10MPa. A product of the multipolar internal stator has a simple structure, a long service life, and is low in production cost. The structure improves work efficiency of a generator and ensures the generator to work stably for a long time. The manufacturing method optimizes a winding technology, and achieves purposes of reducing cost and improving performance.

Description

A kind of multipole inner stator structure for miniature wind power generator manufacture method

Technical field

The stator and the manufacture method thereof that the present invention relates to a kind of wind-driven generator, relate in particular to a kind of multipole inner stator structure for miniature wind power generator and manufacture method thereof.

Background technology

Wind energy is green regenerative energy sources, and blower fan is developed, uses more and more wider, and what miniature or small-sized wind power generator was used in the market is internal rotor permanent-magnetic generator.Mainly there is following shortcoming: 1, number of poles few (being generally the 4-8 utmost point), need step-up gear with matched with blower, production cost, safeguard that use cost is high, volume and weight is all very large; Although it is stable that 2, internal stator directly drives generator, because fan blade is directly contained on shell, moment of inertia is large; Although 3, internal rotor generator moment of inertia is little, easy driving when zero load or strong wind; 4, traditional wind stator is to become monolithic construction with silicon plate punching, and silicon steel material utilance is low; 5, conventional motors stator can only rule, and production efficiency is low; 6, traditional stator insulating treatment process is dipping lacquer, and the class of insulation is lower, and protective capacities is weak as dustproof, waterproof, anti-salt fog, mildew-resistant, and useful life is short.

Summary of the invention

The present invention for overcome the above problems provide a kind of cost-saving, production efficiency is high, the multipole inner stator structure for miniature wind power generator of long service life and manufacture method thereof.

The technical scheme of product of the present invention is: comprise annular stator yoke core, solenoid type coil, stator support, axle sleeve, generator shaft, bearing and a plurality of stator tooth iron core, described stator is arranged on stator support, stator support is connected with generator shaft by axle sleeve, generator shaft is provided with bearing, described annular stator yoke core cylindrical is first-class to be arranged with and the identical dovetail groove of stator tooth iron core quantity, the microcephaly of each stator tooth iron core is provided with dovetail head, described each stator tooth iron core is fixed by the mutual joggle of dovetail groove on dovetail head and stator yoke iron core body, described solenoid type coil is enclosed within outside stator tooth iron core.

Before and after described annular stator yoke core is mutual by some identical stator yoke iron core units, joggle forms, and is respectively equipped with joggle and joggle groove before and after each stator yoke iron core unit.

Described solenoid type coil is divided into some sections, and its quantity is consistent with the quantity of stator yoke iron core unit.

The technical scheme of the inventive method is: manufacture in the steps below:

1) on punch press, raw silicon steel sheet punching joggle is become to some stator tooth iron cores and stator yoke iron core unit;

2) with numerical control filament winder by enamelled wire from one end of microscler coiling mould continuously around to the other end, this microscler coiling mould is several cylinders identical with stator tooth core configuration being arranged in order, the number of turns coiling in turn that during coiling, coiling needs on each cylinder successively, obtains solenoid type coil segment;

3) joggle before and after some stator yoke iron core units is circularized to stator yoke iron core;

4) some stator tooth iron cores are inserted respectively in solenoid type coil segment and with stator yoke iron core unit joggle, connect after solenoid type coil segment, integral body is put into injection mould and inject BMC moulding compound, under 140 ℃, 10MPa pressure, be solidified into firm stator structure.

Product structure of the present invention is simple, production cost is low, long service life, improved the operating efficiency of generator, can guarantee the long-time steady operation of generator.

The beneficial effect of the inventive method is: silicon plate utilance, up to 95%, changes wire insertion technology into electronic wire winding, and winding forms helix tube type, and production efficiency is high, and coiling process enamelled wire, paint film can not damage, and product qualified rate is high, reliable in quality.The present invention has changed stator insulation treatment process, changes dipping lacquer into injection moulding, has improved the class of insulation, and protective capacities strong (can prevent dust, waterproof, anti-salt fog, mildew-resistant), has improved useful life.Because winding terminal is all very short, not only save material, can raise the efficiency again, enamelled wire saves 20%～30%, and electric efficiency improves 5%～10%, has optimized winding technique, has reached and has reduced costs, puies forward high performance object.

Accompanying drawing explanation

Fig. 1 is the structural representation of product of the present invention.

In figure, 1 is generator shaft, the 2nd, and bearing, the 3rd, axle sleeve, the 4th, stator.

Fig. 2 is the side-looking structural representation of product of the present invention.

In figure, 5 is stator supports, the 6th, and solenoid type coil, the 7th, annular stator yoke core, the 8th, stator tooth iron core.

Fig. 3 is the solenoid type coil winding schematic diagram of the inventive method.

In figure, 6 is solenoid type coils, the 9th, and microscler coiling mould.

Fig. 4 is the structural representation of stator yoke iron core unit.

In figure, 10 is joggles, the 11st, and joggle groove, the 12nd, dovetail groove.

Embodiment

A kind of multipole inner stator structure for miniature wind power generator, comprise annular stator yoke core 7, solenoid type coil 6, stator support 5, axle sleeve 3, generator shaft 1, bearing 2 and a plurality of stator tooth iron core 8, described stator is arranged on stator support 5, stator support 5 is connected with generator shaft 1 by axle sleeve 3, generator shaft 1 is provided with bearing 2, described annular stator yoke core 7 cylindricals are first-class is arranged with the dovetail groove 12 identical with stator tooth iron core 8 quantity, the microcephaly of each stator tooth iron core 8 is provided with dovetail head, described each stator tooth iron core 8 is fixed by the mutual joggle of dovetail groove 12 on dovetail head and stator yoke iron core 7 bodies, described solenoid type coil 6 is enclosed within outside stator tooth iron core 8.Before and after described annular stator yoke core 7 is mutual by six identical stator yoke iron core units, joggle forms, and before and after each stator yoke iron core unit, is respectively equipped with joggle 10 and joggle groove 11, and described solenoid type coil 6 is divided into six sections.

A multipole inner stator structure for miniature wind power generator manufacture method, manufacture in the steps below:

1) on punch press, raw silicon steel sheet punching joggle is become to some stator tooth iron cores 8 and six stator yoke iron core units;

2) with numerical control filament winder by enamelled wire from one end of microscler coiling mould 9 continuously around to the other end, this microscler coiling mould 9 is several cylinders identical with stator tooth iron core 8 shapes being arranged in order, the number of turns coiling in turn that during coiling, coiling needs on each cylinder successively, obtains solenoid type coil segment;

3) joggle before and after six stator yoke iron core units is circularized to stator yoke iron core 7;

4) some stator tooth iron cores 8 are inserted respectively in six sections of solenoid type coil segments and with stator yoke iron core unit and distinguish joggle, connect after solenoid type coil segment, integral body is put into injection mould and inject BMC moulding compound, under 140 ℃, 10MPa pressure, be solidified into firm stator structure.

Claims (1)

1. a multipole inner stator structure for miniature wind power generator manufacture method, is characterized in that, manufactures in the steps below:

1) on punch press, raw silicon steel sheet punching joggle is become to some stator tooth iron cores and stator yoke iron core unit;

2) with numerical control filament winder by enamelled wire from one end of microscler coiling mould continuously around to the other end, this microscler coiling mould is several cylinders identical with stator tooth core configuration being arranged in order, the number of turns coiling in turn that during coiling, coiling needs on each cylinder successively, obtains solenoid type coil segment;

3) joggle before and after some stator yoke iron core units is circularized to stator yoke iron core;

4) some stator tooth iron cores are inserted respectively in solenoid type coil segment and with stator yoke iron core unit joggle, connect after solenoid type coil segment, integral body is put into injection mould and inject BMC moulding compound, under 140 ℃, 10MPa pressure, be solidified into firm stator structure.

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