CN205864096U - A kind of stator stalloy - Google Patents

Abstract

This utility model is a kind of stator stalloy, relate to technical field of motors, including: stalloy body and some pins, stalloy body central is circular port, pin is uniformly distributed along stalloy body circular port inward flange circumference, forms winding slot between adjacent described pin；The winding slot distributed areas gross area is less than the gross area of described pin distributed areas.By reducing the quantity of pin and increasing the area of each pin and preferably make the winding slot distributed areas gross area gross area less than described pin distributed areas.So, the intensity of pin increases relatively, can bear bigger power, effectively reduces motor work stator and continues the deformation extent of stalloy during stress, affects the service life of motor；Additionally, by the quantity decreasing pin, increase the area of single pin, and then add the intensity of pin, be also easier to manufacture simultaneously.

Description

A kind of stator stalloy

Technical field

This utility model relates to technical field of motors, especially relates to a kind of stator stalloy.

Background technology

Stator is the actionless part of motor, and stator is made up of, specifically stator core, stator winding and support three part , stator is generally made up of iron core, coil, skeleton (have does not has), lead-in wire, extension spring etc..Wherein, the stator core of motor is general Being formed by many piece stalloy overlaps, silicon steel is a kind of steel closing silicon (silicon is also referred to as silicon), and its silicon content is at 0.8-4.8%.By silicon Steel disc does stator core, and being because silicon steel itself is the very capable magnetisable material of a kind of magnetic conduction, and in hot-wire coil, it is permissible Produce bigger magnetic induction, such that it is able to make the volume-diminished of motor.

It is known that work under exchange status, power attenuation, not only on the resistance of coil, also produces at alternating current In iron core under Ci Hua.Generally the power attenuation in iron core being caused by two reasons " iron loss ", iron loss, one is " magnetic hysteresis Loss ", one is " eddy-current loss ".Magnetic hystersis loss be iron core in magnetic history, the ferrum produced owing to there is hysteresis Damaging, the size that the size of this loss is surrounded to the hysteresis curve of material is directly proportional.The hysteresis curve of silicon steel is narrow and small, uses The iron core magnetic hystersis loss that it makees motor is less, and its degree of heat can be made to be greatly reduced.Also have and select lamellar iron core to be because lamellar Iron core can reduce another iron loss " eddy-current loss ", during motor work, has alternating current in coil, the magnetic that it produces Logical yes alternation.The magnetic flux of this change produces faradic current in the core.The faradic current produced in iron core, vertically In the plane of flow direction, circulation, so being eddy current.Eddy-current loss makes iron core generate heat equally.In order to reduce eddy-current loss, The iron core of motor builds up with stalloy insulated from each other, make eddy current in the loop of thin-and-long, by less cross section, to increase Resistance on eddy current path；Meanwhile, the silicon in silicon steel makes the resistivity of material increase, and also functions to reduce the effect of eddy current.But In prior art, stalloy number of pins is many and complex-shaped, area is little causes structural strength poor, and is not easy to manufacture, therefore Need the stator stalloy that a kind of novel intensity is high, be easy to manufacture.

Utility model content

The purpose of this utility model is to provide a kind of stator silicon steel sheet, draws solving stalloy present in prior art Foot number is many and complex-shaped, area is little causes structural strength poor, and is not easy to the technical problem manufactured.

This utility model is a kind of stator stalloy, including: stalloy body and some pins；

Described stalloy body central is circular port；

Described pin is uniformly distributed along stalloy body circular port inward flange circumference, forms coiling between adjacent described pin Groove；

The described winding slot distributed areas gross area is less than the gross area of described pin distributed areas.

Further, described pin be shaped as rectangle.

Further, described stalloy body is provided with some lightening holes, and described lightening hole is circular or polygon.

Further, described lightening hole is equidistantly distributed along the circular port of stalloy body, and described lightening hole is with described Pin one_to_one corresponding.

Further, the outline of described stalloy body is circular.

Further, the outline of described stalloy body is regular polygon.

Further, the outward flange of described stalloy body is provided with some grooves having positioning action.

Further, the outward flange of described stalloy body is uniformly provided with several fin.

Further, described stalloy body and pin outer surface are provided with insulating barrier.

A kind of stator that this utility model provides, combines including being laminated by stator silicon steel structure.

Beneficial effect: the stator stalloy that the present embodiment provides, its stalloy body central is circular port, and pin is along silicon Steel disc body circular port inward flange circumference is uniformly distributed, and forms winding slot between adjacent described pin；By reducing the number of pin Measure and increase the area of each pin and make the winding slot distributed areas gross area gross area less than described pin distributed areas.This Sample, the intensity of pin increases relatively, can bear bigger power, effectively reduces motor work stator and continues stalloy during stress Deformation extent, affects the service life of motor；Additionally, by the quantity decreasing pin, increase the area of single pin, enter And add the intensity of pin, it is also easier to manufacture simultaneously.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The stator silicon steel structure schematic diagram that Fig. 1 provides for this utility model embodiment；

The another kind of stator silicon steel structure schematic diagram that Fig. 2 provides for this utility model embodiment.

Reference:

1, stalloy body；2, lightening hole；3, pin；

4, winding slot；5, locating slot；6, fin.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality Novel protected scope.

In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Language concrete meaning in this utility model.

The stator silicon steel structure schematic diagram that Fig. 1 provides for this utility model embodiment.

As it is shown in figure 1, the stator stalloy that the present embodiment provides, its stalloy body 1 center is circular port, pin 3 It is uniformly distributed along stalloy body 1 circular port inward flange circumference, between adjacent described pin 3, forms winding slot 4；Drawn by minimizing The quantity of foot 3 and increase each pin 3 area and preferably make the winding slot 4 distributed areas gross area be less than described pin 3 be distributed The gross area in region.So, the intensity of pin 3 increases relatively, can bear bigger power, effectively reduces motor work stator and holds During continuous stress, the deformation extent of stalloy, improves the service life of motor.

In the prior art, pin 3 quantity of stator stalloy has 18,24,30,36,72 etc., and minority has 45, but Major part pin 3 number for even number and minimum be 18；In certain space, quantity is the most, and the area of single pin 3 is the least, Intensity is the lowest, is more easily deformed damage in work process, so the present embodiment is by decreasing the quantity of pin 3, such as 4,6 or 8 Individual, increase the area of single pin 3 to increase the intensity of pin 3 so that it is be difficult to deformed damaged at work.

In stator core makes the choosing of material, can be low carbon board, beryllium molybdenum alloy, electrical pure iron or silicon steel Sheet.In these materials, low carbon board is the low carbon board of below Q235, and applicable direct current generator；Beryllium molybdenum alloy and electrical pure iron Electro permanent magnetic is good, and coercivity is low, and saturated magnetic strength is high, and magnetic stability, again without magnetic aging, is suitable for direct current generator, but price is higher, becomes This is big.And stalloy smooth surface, smooth and thickness are uniform, additionally, when electric machine rotation, the magnetic of stator core can become always Changing, and stalloy is soft magnetic material, its remanent magnetism and coercive force are the least, i.e. hysteresis curve is the narrowest, such material Magnetic hysteresis loss is little, substantially free of magnetic aging, it is possible to reduce eddy current loss, can improve iron core magnetic conduction ability simultaneously, strengthens magnetic field close Degree, reduces conductive capability, can improve the activity coefficient of iron core.It is thus preferable to, the material selection stalloy of stator core.

In prior art, the pin 3 of stator silicon steel sheet is typically fan-shaped, i.e. one end width near stalloy body 1 is short, One end width away from stalloy body 1 is long, and pin 3 away from stalloy body 1 towards pin 3 inner recess.All Pin 3 along stalloy body 1 inward flange circumference evenly distributed so that pin 3 indent while collectively constituting similar round, limit with , less than the space within winding slot 4, there is the function preventing line group from coming off in space between limit.But due to the shape issue of pin 3, Make motor operationally, so that the power that pin 3 and stalloy body 1 junction are subject to is bigger, easily deform in this junction, Thus affect the using effect of motor.In the present embodiment, in order to avoid described problem occurs, the shape of pin 3 is set to rectangle, And the longest edge being wider than sector of rectangle.

As it is shown in figure 1, owing to pin 3 is uniformly circumferentially to be distributed along stalloy body 1 circular port inward flange, adjacent two are drawn The winding slot 4 of foot 3 composition is a region being similar to isosceles trapezoid, and opening part is that isosceles trapezoid is the shortest, and it is same The line group that sample is possible to prevent in winding slot 4 comes off from space；And each position strength ratio of the pin 3 of rectangular shape is bigger And stablize, compared to the dynamo steel sheet of same type, the more difficult deformation of pin 3 of rectangular shape.

In motor work process, due to the interaction of power, the power suffered by all pins 3 all can be delivered to stalloy originally On body 1, so stalloy body 1 needs certain width, in general the width of stalloy body 1 is more than the width of pin 3 Degree is with the deformation avoiding stalloy body 1.But stator is typically made up of a lot of sheet stalloys, such stator is due to stalloy originally The accumulation of body 1 weight and the heaviest.

As further improvement of this embodiment, in the case of not affecting stalloy body 1 intensity, at stalloy body Arranging some lightening holes 2 on 1, in the present embodiment, the quantity of lightening hole 2 is consistent with the quantity of pin 3 or the two of pin 3 quantity Times, lightening hole 2 could be arranged to circle can also be for polygon.

By mechanical relationship it is known that the active force overwhelming majority of stalloy body 1 is acted on stalloy originally at pin 3 In part between the adjacent two pins of body 13, so the design of lightening hole 2 is avoided being arranged on this band of position as far as possible, so when subtracting When repeated hole 2 is identical with pin 3 number, lightening hole 2 is arranged on the extended line of pin 3, along between the circular port etc. of stalloy body 1 Away from distribution, and near the outward flange of stalloy body 1, reduce the lightening hole 2 impact on stalloy body 1 further, now subtract The area of repeated hole 2 can be relatively a little bigger, and this is suitable for the situation that stator stalloy area is less；As in figure 2 it is shown, work as loss of weight When the number in hole 2 is the twice of pin 3 number, lightening hole 2 is that one group of circular port along stalloy body 1 equidistantly divides with two Cloth, and the both sides of the extended line being arranged on pin 3 being close to, same best near stalloy body 1 outward flange, this situation is fitted Share the stator stalloy in large-size machine, two lightening holes 2 preferably alleviate stalloy body 1 weight and compared to one The lightening hole 2 identical with its gross area, less to stalloy body 1 intensity effect.

In prior art, the outer layer of stator silicon steel sheet does not has radiator structure, and the stator that it is made has heat dispersion difference Shortcoming, have impact on the work efficiency of whole motor.Have the stator core that the stator stalloy combination of lightening hole 2 is formed, shape Become the some through holes formed by lightening hole 2, while reducing motor overall weight, also increase the surface area of stator core, Make stator dispel the heat faster, in the case of or load long in the motor working time is excessive, preferably avoid winding to be burned out, significantly Improve the service life that motor is overall.

Stalloy body 1 outline of the stator stalloy that the present embodiment provides can be circular, it is also possible to is the most Limit shape；The stator core that stator stalloy combines is relatively fixed with motor housing, when the outline of stalloy body 1 is Time circular, needing to arrange some locating slots 5 at outline, this locating slot 5 is corresponding with motor housing, and stator stalloy forms Stator core be pressed in motor housing by positioning embedded.In the present embodiment, stalloy body 1 outline selects circle.

Compared to needing the circle of locating slot 5, when the outline of stalloy body 1 is regular polygon, it is such as square During shape, the right angle rack that two or four is corresponding only need to will be set in corresponding motor housing, then by colding pressing or hot jacket Mode stator core is inserted in motor housing, it is noted that now join for interference between stator core and motor housing Close, in order to preferably fixed stator iron core.

Owing to stalloy itself is electric conductor, under the effect of exchange flux, in iron core, also create faradic current, this It is unavoidable；If iron core is an entirety, being the equal of the conductor that an area is the biggest, circuit is the shortest, its resistance value The least, although the voltage of sensing is the highest, but electric current is the biggest.Which produces great eddy current (circulation) loss.Sternly During weight, can generate heat local melting by iron core, is commonly called as " catching fire " for iron core.Therefore, stalloy is the thinnest, and its loss is the least.Motor The thickness of stator stalloy generally stalloy monolithic between 0.35 to 1.0mm rotates and laminates and be welded and fixed.

Additionally, in order to reduce the eddy-current loss in motor stator core, to have certain insulation between motor-stator silicon-steel sheet Resistance value, stalloy body 1 and pin 3 outer surface also should be provided with insulating barrier.After being coated with insullac between every, iron core is made to exist That cross section produced is divided into the conductor of a lot of small bores, and so its resistance just becomes big.So being coated with the iron core of paint, Although the eddy-current loss of there is also (belongs to a part for iron loss), but the least the most a lot.

The insulation processing on stalloy surface has japanning and two kinds of methods of oxidation, and the oxidation of the stator stalloy of motor is to make Surface Creation one layer is uniform and thin, and the oxide-film being made up of ferroso-ferric oxide and iron sesquioxide, it has low cost, insulation The advantages such as effective, thermostability, heat conductivity are good, improve the electro permanent magnetic of stalloy, and oxide-film thin iron core laminated coefficient is high, for a long time It is under high temperature unchanged, the advantage such as free from environmental pollution.Existing motor-stator silicon-steel sheet coating apparatus includes japanning and dries Two parts, are made up of japanning mechanism, transporter, drying oven, ventilated smoke discharging and chiller, and chiller is by being sequentially connected with Draught hood, exhaust duct and ventilation blower composition together, wherein, japanning processes can select phosphoric acid-chromic acid system coating or tree Fat and chromic acid system coating.Such as phosphoric acid-chromic acid system coating, its use temperature is 70-80 DEG C, and interface resistance is 5-50 Ω cm2/ Sheet；And resin and chromic acid system coating use temperature less than 30 DEG C, interface resistance is 5-50 Ω cm2/ sheet, and people can be according to not The factors such as same japanning facility and ambient temperature selectively use one of which.

Japanning processes and makes stator stalloy form the paint film that mechanical performance is high, uniform and thin, because both insulation position In reason method, japanning high treating effect, process stabilizing, efficiency are high, so use is the most universal.

Stator core be completed insulation processing by stator silicon steel structure after laminate and combine, stator with stalloy it Between fixed form can be bonding can also be for riveting, but in the present embodiment, between stator stalloy, use tooth support It is fixed mode, i.e. applies certain pressure at iron core two ends, and make stator core become by this pressure to have necessarily The entirety of intensity.

In the prior art, initial stator stalloy uses full circle punching, falls in this stator stalloy Waste material will be thrown away, and stock utilization is the lowest；If another way is then to use dry tablet sector stalloy to being combined into circle then Being overrided to form, this mode substantially increases the utilization rate of material.In general, stalloy external diameter less than 1m use full circle silicon steel Sheet, the fan-shaped stalloy of use more than 0.99m.But in the present embodiment, in order to improve stock utilization, minimize cost, fixed Sub-iron core uses, by four fan-shaped stalloys, spelling forms a full circle, then folds to fall to being pressed into.

The production method of stalloy is different, and the compound mode of its stator core is the most different, for the tooth support side of being fixed Formula is received, and the fastening of stator core divides two kinds: full circle stalloy uses outer press mounting, fan-shaped stalloy to press-fit in using.

It is noted that when the outline of stalloy body 1 is circular, the locating slot 5 that its outline is arranged is except can So that outside stator core is fixing with motor housing, it is also possible at stator with in silicon steel plate stacking anabolic process, fix at one Benchmark, controls each silicon steel sheet stack and is combined in the position specified.

As further improvement of this embodiment, when being circular when using stalloy body 1 outline, be made from determines After sub-iron core is fixing with motor housing, space each other is the least, and during motor work, the internal heat produced passes to stator Can only be distributed by motor housing after iron core, and can not be blown out by motor internal fan, have impact on the heat radiation of motor, as Shown in Fig. 2, also fixing some fin 6 on stalloy body 1 outline, each fin 6 is combined by two rectangles, The rectangular area being positioned at outermost end is less, and after this stalloy is combined into stator core, it is convex that the rectangle combination of outermost end is formed Rising can be with the groove interference fit on supporting motor housing.

Compared to there is no the stator stalloy of fin 6, have adjacent between its stator core and motor housing of being formed The heat dissipation channel of fin 6 composition, after the heat that motor work produces is delivered to stator core, owing to its surface area increases, dissipates Heat faster, and can quickly be discharged by motor internal fan, considerably improves stator core by the heat being dispersed into heat dissipation channel Heat sinking function, effectively prevents the overheated situation causing winding to burn out of motor internal, improves the service life of motor.

Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of type each embodiment technical scheme.

Claims (10)

1. a stator stalloy, it is characterised in that including: stalloy body and some pins；

Described stalloy body central is circular port；

Described pin is uniformly distributed along stalloy body circular port inward flange circumference, forms winding slot between adjacent described pin；

The described winding slot distributed areas gross area is less than the gross area of described pin distributed areas.

Stator stalloy the most according to claim 1, it is characterised in that described pin be shaped as rectangle.

Stator stalloy the most according to claim 1, it is characterised in that described stalloy body is provided with some losss of weight Hole, described lightening hole is circular or polygon.

Stator stalloy the most according to claim 3, it is characterised in that described lightening hole is along the circle of stalloy body Hole is equidistantly distributed, and described lightening hole and described pin one_to_one corresponding.

Stator stalloy the most according to claim 1, it is characterised in that the outline of described stalloy body is circle Shape.

Stator stalloy the most according to claim 1, it is characterised in that the outline of described stalloy body is for the most Limit shape.

Stator stalloy the most according to claim 5, it is characterised in that if the outward flange of described stalloy body is provided with The dry locating slot having positioning action.

Stator stalloy the most according to claim 1, it is characterised in that the outward flange of described stalloy body uniformly sets There are several fin.

Stator stalloy the most according to claim 1, it is characterised in that described stalloy body and pin outer surface set There is insulating barrier.

10. a stator, it is characterised in that include by according to the stator silicon steel structure described in any one of claim 1-9 Laminate and combine.