CN101558547A - Electric motor stator - Google Patents
Electric motor stator Download PDFInfo
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- CN101558547A CN101558547A CN200780046165.0A CN200780046165A CN101558547A CN 101558547 A CN101558547 A CN 101558547A CN 200780046165 A CN200780046165 A CN 200780046165A CN 101558547 A CN101558547 A CN 101558547A
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- China
- Prior art keywords
- magnetic pole
- pole tooth
- stator
- iron core
- outer circumferential
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention provides a kind of stator. When to the magnetic pole tooth coiling of stator core, although being provided with the method that expansion stator core carries out winding operation in the prior art, but especially in the case where two-pole stator, since the curvature of its winding space is larger, so being still difficult to carry out winding operation well, it is an object of the present invention to which big density enough coilings can also be wound for even with the biggish winding space of curvature. Articulated section (13e) is provided on magnetic pole tooth (11), polar arc (11a) be unfolded can to outer peripheral side, the winding space (S) of the magnetic pole tooth (11) two sides is made to carry out winding operation to it in the state of arrangement linear along same straight line.
Description
Technical field
The present invention relates to a kind of stator (stator) that for example is built in the motor in the electric tool, particularly relate to its winding structure.
Background technology
In the prior art, about the winding structure on stator or its each magnetic pole tooth (magnetic teeth), known have a described technology of following patent documentation.
In this patent documentation 1, disclose following technology, stator has been divided into a plurality of segmentations on its circumferencial direction, contained one or more magnetic pole tooths in each segmentation, after each magnetic pole tooth is wound the line, each segmentation is mutually combined and made the annular stator.
In patent documentation 2, disclose following technology,, carried out winding operation by magnetic pole tooth simultaneously, thereby try hard to improve its production efficiency to this two parts iron core with the stator core separated into two parts of two electrode structures.
Following technology is disclosed in patent documentation 3, the thinner wall section of suitable quantity is set on the circumferencial direction of annular stator core, launch this stator core by this thinner wall section, and finish the coiling of magnetic pole tooth under this deployed condition, it being restored afterwards is annular again.
[patent documentation 1] Japanese Gazette of Patent for Invention is speciallyyed permit No. 2888142
[patent documentation 2] Japanese Gazette of Patent for Invention is speciallyyed permit No. 3113933
[patent documentation 3] Japanese Gazette of Patent for Invention is speciallyyed permit No. 3181029
But, if adopt disclosed technology in for example above-mentioned patent documentation 2, then (it is provided with in the mode of along the circumferential direction extending from the top of magnetic pole tooth owing to polar arc, obstacle when the top part that is arc-shaped bend when stator shaft orientation is observed) or the annulus portion of stator become coiling, so be difficult to carry out the high efficiency winding operation of big density, particularly be difficult to the guiding that winds the line of the inboard of winding space.
In addition, if adopt disclosed technology in for example above-mentioned patent documentation 3, if the coiling amount to magnetic pole tooth is bigger, then after finishing coiling, by the switch-in part that is used for launching that stator is closed during for annular, or when mutually combining each segmentation into annular, the coiling that outer circumferential side may occur snaps in the situation of switch-in part, thereby can't guarantee the abundant coiling amount that matches with winding space.Particularly for two-pole stator, because the curvature of its winding space (being the curvature of polar arc) is bigger, so this problem is just more obvious with two magnetic pole tooths that face one another.
Summary of the invention
The object of the present invention is to provide following a kind of technology, that is,, also can carry out the high efficiency winding operation of big density even mainly be at the magnetic pole tooth of the maximum two-pole stator of the curvature of number of magnetic poles less stator, particularly winding space.
To achieve these goals, stator of the present invention adopts the stator of the described structure of each claim in claims.
When adopting described stator of claim 1 and the described method for winding of claim 5, owing to polar arc being launched to make winding space to the outer circumferential side displacement to outer circumferential side, for example make winding space at its length direction along same linear array (being the wire ordered state), and under this state, carry out winding operation to magnetic pole tooth, therefore when coiling, the top of polar arc or the arc sections of stator just can not hinder coiling, thereby carry out winding operation in the winding space inboard to density greatly.
In addition, after being provided with, the wire arrangement use Winder to wind the line, so can carry out winding operation quick, homogeneous owing to the winding space of magnetic pole tooth both sides can be.
And, owing to be used for the magnetic pole tooth and the polar arc of each segmentation are arranged on the interior all sides of polar arc rather than the outer circumferential side of winding space to the switch-in part that outer circumferential side launches, so with each magnetic pole tooth in deployed condition resets into during all sides, or when mutually combining each segmentation into annular, the situation about snapping in that just can prevent from advance to wind the line takes place.
When stator core for example adopts the sheet metal that will be made by punch ram to carry out the structure of lamination, both can make it be circular arc when punch ram and wind the line after outer circumferential side launches, also can be the state that launches and make its inside all lateral bending song after coiling when punch ram.Adopt any mode in these two kinds on earth, can make decision again on the basis of punch ram operation rate of finished products etc. considering.
At this, the quantity of magnetic pole tooth (number of poles) few more (for example being the two poles of the earth), its winding space is bigger in order to ensure making, will make polar arc length (winding space length in a circumferential direction) in a circumferential direction long more, for example for the two-pole stator iron core, adopt the structure described in the claim 1, can obtain effect preferably.
If adopt the described stator of claim 2, then can launch magnetic pole tooth by articulated section relatively simple for structure.
If adopt the described stator of claim 4, then the incision recess is set, thereby can makes polar arc, and then make winding space to the outer circumferential side displacement by outer circumferential side at magnetic pole tooth, become the wire ordered state, thereby can obtain the effect same with above-mentioned situation.By to incision recess setting-in fixed block, the fixed in shape that can make this stator is an annular, in addition since the incision recess be can the setting-in fixed block structure, thereby the characteristic of motor do not influenced.
Description of drawings
Fig. 1 represents the 1st execution mode of the present invention, is that the vertical view under the coiling state is finished in the iron core split that launches to outer circumferential side.
Fig. 2 is the direction along arrow among Fig. 1 (2), observes the view of the iron core split that launches to outer circumferential side from interior all side.
Fig. 3 restores the iron core split of having finished coiling on the magnetic pole tooth to be the vertical view behind the semicircular arc state.
Fig. 4 restores finish coiling back concerning vertical view for the stator of the iron core split of semicircular arc after docking mutually.
Fig. 5 is the vertical view of two somatotype stator cores in the present invention's the 1st execution mode.Two iron core splits of expression are separated into the state of less spacing among this figure.
Fig. 6 is the vertical view of iron core split.
Fig. 7 is the winding operation operation is carried out in a schematic diagram from expression to the magnetic pole tooth of iron core split.
Fig. 8 is the vertical view that has the iron core split of magnetic pole tooth in the present invention's the 2nd execution mode.
Fig. 9 represents the iron core split vertical view under the outer circumferential side deployed condition in the present invention's the 2nd execution mode.
Figure 10 is the vertical view of the iron core split in the present invention's the 3rd execution mode.
Figure 11 represents the iron core split vertical view under the outer circumferential side deployed condition in the present invention's the 3rd execution mode.
Figure 12 finishes vertical view when restoring after the coiling for the annular state again with the iron core split in the 3rd execution mode.
Figure 13 is the vertical view that is embedded with in the incision recess of the iron core split in the 3rd execution mode under the fixed block state.
Figure 14 represents the iron core split vertical view under the deployed condition in the present invention's the 4th execution mode.
Figure 15 is the vertical view of iron core split under the state after the bending recovery in expression the 4th execution mode.
Figure 16 is the partial enlarged drawing of (16) portion among Figure 15, is the amplification plan view of polar arc maintaining part.
Figure 17 is the vertical view after the stator core that has launched is finished coiling.
Figure 18 is mutually in the face of the vertical view under the placement state with crooked a pair of iron core split of restoring after the coiling.
Figure 19 is the vertical view of the stator in the 4th execution mode.
Figure 20 is the partial enlarged drawing of (20) portion among Figure 19, is the vertical view of overlapping portion of the end of the junction surface of annulus portion of iron core split and insulating material.
Embodiment
Below, 1～13 embodiments of the present invention are described with reference to the accompanying drawings.As one of example of the stator of motor, in the execution mode of following explanation, being the two-pole stator that is facing one another with two magnetic pole tooths is that example describes.Fig. 4 represents the stator 1 in the 1st execution mode.When the stator core of this stator 1 (stator core) 10 observes from the axis direction of motor, roughly be annular, on its magnetic pole tooth, finish coiling after, all within it sides are provided with rotor R.This stator core 10 is that a plurality of sheet metals that will be made by punch ram carry out lamination, makes it become as a whole making, in it all sides have two be mutually facing to magnetic pole tooth 11.
As shown in Figure 5, this stator core 10 can be divided into two segmentations (two iron core splits 13) at the substantial middle position of annulus, and two magnetic pole tooths 11 are combined in respectively in two annulus portions 12 that constitute annulus along circumferencial direction.As shown in the figure, the two ends of two iron core splits 13 are formed with the recess 13a and the protuberance 13b of wedge shape respectively.The recess 13a of an iron core split 13 can another iron core split 13 of setting-in protuberance 13b, such two iron core splits 13 are (above-below direction among Fig. 5) location mutually radially just.
Interior all sides in the circumferencial direction both sides of this thinner wall section 13c respectively are formed with switch-in part (otch) 13e.The switch-in part 13e of this two place is as hinge, so as shown in Figure 6, this iron core split 13 just can launch to outer circumferential side.
Tip side (interior all sides) at magnetic pole tooth 11 is provided with the polar arc 11a to circumferencial direction both sides attitude in extension of shape.Between two polar arc 11a and annulus portion 12, be formed with the winding space S of circular arc respectively.As mentioned above, switch-in part 13e is as the articulated section, iron core split 13 is launched to outer circumferential side, at this moment, two winding space S from be positioned at the electrical axis be state (state shown in Figure 5) on the same circumference at center to the outer circumferential side displacement, two winding space S roughly are the wire ordered state (shown in Figure 6 be the state that wire is arranged) of straight line at its length direction.
As mentioned above, an iron core split 13 in two is to outer circumferential side launches, be under the state that wire arranges around magnetic pole tooth 11 coiling copper cash at each winding space S.As shown in Figure 7, the clamping apparatus 20,21 that wound the line of the iron core split 13 under the state that outer circumferential side launches is clamped in this between the two.
Two coiling clamping apparatuss 20,21 mutually facing to the surface be provided with location indentations, this location indentations is used for intactly holding the iron core split 13 that places deployed condition in advance.Iron core split 13 is inlaid in this location indentations, and two coiling clamping apparatuss 20,21 are fixed up in the mode that overlaps.Under the state that two coiling clamping apparatuss 20,21 overlap, between forms gap 22, and this gap 22 is positioned at around the two winding space S of displacement one-tenth by the wire arrangement of nipped iron core split 13.Therefore can carry out winding operation to winding space S via this gap 22.
Be provided with through hole 20a, the 21a of rectangle at the center of two coiling clamping apparatuss 20,21, its through hole 13d with iron core split 13 is identical.Under the state that sets iron core split 13, with respect to the axle center of through hole 13d, the axle center of two through hole 20a, 21a is identical with it in addition.In through hole 20a, the 21a of the through hole 13d of iron core split 13 and the clamping apparatus 20,21 that winds the line, be penetrated with the four rib axles 25 that section is rectangular.Because this four ribs axle 25 drives by not shown drive motors and around self axle center rotation, therefore, two coiling clamping apparatuss 20,21 and by its iron core split of clamping 13 rotation together.
Provide copper cash 24 via the gap 22 between the coiling clamping apparatus 20,21 of rotation together to winding space S, thereby this copper cash 24 will be wound up into magnetic pole tooth 11 peripheries of iron core split 13.At this moment, when observing iron core split 13 vertically, the two winding space S that are positioned at two magnetic pole tooths, 11 sidepieces all have mild circular shape, but the circular shape of this two winding space S is not to be positioned on the same circumference, but be the wire ordered state of length direction along same straight line, thereby via the coiling clamping apparatus 20,21 22, two the winding space S in gap from its open side to its deep, roughly be the state that exposes to outer circumferential side on the entire scope.Copper cash 24 offers winding space S via this gap 22.Copper cash 24 is supplied with from the leading block 23 of Winder.Provide copper cash 24 by the reciprocating motion (swing) that makes leading block 23 only do more among a small circle (being about the width in gap 22) along the axis direction of four rib axles 25, just can be on the whole width of winding space S coiling copper cash 24.Therefore, need not to make leading block 23 that bigger displacement etc. is arranged on its axis of rotation.
When the copper cash of finishing to magnetic pole tooth 11 coiling ormal weights, handle well again after its end, iron core split 13 is taken out between two coiling clamping apparatuss 20,21.The iron core split 13 of coiling is so finished in expression in Fig. 1 and Fig. 2.The copper cash 24 that roughly is whole space (appearance that promptly will expose the top of the polar arc 11a) capacity of having reeled of the winding space S of wire ordered state here along same straight line.In Fig. 1 and Fig. 2, mark has symbol M in the winding section of the copper cash 24 of having reeled.
As shown in Figure 3, the iron core split 13 of finishing coiling can rely on the hinge effect of switch-in part 13e, 13e (articulated section) to return to the position of the semicircular arc of inside all lateral bending songs.Be accompanied by iron core split 13 and restore and be that semicircular arc, each polar arc 11a and each winding space S will be displaced to along the position on the circumference separately, therefore when axis direction was observed, winding section M just was deformed into the semicircular arc shown in the figure.
So far, just finished winding process in the one-sided iron core split 13 of stator core 10.And for another (that on the left of among Fig. 5) iron core split 13, also same with above-mentioned situation, utilize the hinge effect of each switch-in part 13e, make iron core split 13 be the state that launches to outer circumferential side, under this state,, afterwards it is restored for being the state of semicircular arc bending to the copper cash 24 of winding space S coiling capacity.As shown in Figure 4, will finish two iron core splits, 13 butt joints of coiling and make 1 stator core 10.As previously mentioned, under this mated condition, produce engaging between the recess 13a on arc sections 12 tops and the protuberance 13b, so these two iron core splits 13 radially are being positioned on (above-below direction among Fig. 4).
At this, for each magnetic pole tooth 11 of this stator core 10, all formed to big density winding section M with capacity coiling.
If the stator 1 in the 1st execution mode of employing said structure, then stator core 10 is divided into a left side, the iron core split 13 of right semi-circle arc, and for two iron core splits 13, make it make its winding space S respectively to the outer circumferential side expansion, S is to the outer circumferential side displacement, thereby make it be the state arranged along the wire of same straight line (when the rotation direction of motor is observed at length direction, its coiling path is linearly, be that winding section M is linearly), owing to can be the winding space S coiling copper cash 24 of wire ordered state to this, can interfere (hook) with top ends or the arc sections 12 of polar arc 11a so just needn't worry this copper cash 24.Therefore can carry out the winding operation of high speed, big density to the deep of two winding space S.At this, suppose to make under the state of two winding space S on being positioned at same circumference when semicircle (iron core split 13 for) when carrying out winding operation around the magnetic pole tooth 11, consider when copper cash 24 around magnetic pole tooth 11 around the time must avoid this copper cash 24 and top ends or the arc sections 12 of polar arc 11a to interfere, so can't be to the copper cash of the deep of this winding space S coiling capacity, thereby the density that can cause winding the line reduces.At this point, if employing present embodiment, then because two winding space S roughly are the wire ordered state along same straight line, so copper cash 24 can not be hooked into polar arc 11a, also can not interfere, thereby can carry out at a high speed the winding operation of density greatly to the deep of winding space S with arc sections 12.
In addition, as mentioned above, carry out winding operation owing to iron core split 13 can be arranged in the coiling clamping apparatus 20,21 by Winder, so can seek the raising of production efficiency of this winding process and the reduction of production cost.
Can also carry out variously being implemented again after changing for the 1st execution mode described above.For example, more than exemplified the structure that is provided with thinner wall section 13c at the central part of magnetic pole tooth 11, this thinner wall section 13c constitutes by the breach that forms the Rack and the degree of depth, but can be not this breach be set yet, extends and form the structure of the polar arc that links to each other but adopt from the top of magnetic pole tooth to the circumferencial direction both sides at the central part of magnetic pole tooth.In Fig. 8 and Fig. 9, illustration do not have the iron core split 30 of above-mentioned notch part, on a magnetic pole tooth 31, have two polar arc 31a that in succession mutually to form like this.
Iron core split 30 in the 2nd execution mode has a magnetic pole tooth 31, is provided with two polar arc 31a that in succession mutually on its top, and these two polar arc 31a are the circular shape around rotor R.These two polar arc 31a have the extension 31b that extends to approaching mutually direction.Therefore as shown in Figure 8, be under the state of circular arc in this iron core split 30, these two extension 31b are the state of butt joint, at the periphery that links to each other mutually round rotor R that forms in interior week of these two polar arc 31a, 31a.
Between the extension 31b of these two polar arc 31a, be provided with the switch-in part 32 that is used for launching.It is "T"-shaped that this switch-in part 32 constitutes letter by vertical 32a of portion and transverse part 32b, and the wherein vertical 32a of portion forms from radially cutting laterally between the two extension 31b, and transverse part 32b cuts and forms in the mode of both sides bifurcated to the left and right in the bottom of this vertical 32a of portion.Work as articulated section 31c in two ends of this transverse part 32b.That is, as shown in Figure 9, the vertical 32a of portion and the transverse part 32b of the switch-in part 32 that iron core split 30 also can be by being arranged on magnetic pole tooth 31 central parts to launch to outer circumferential side, launch back its two winding space S and are the wire ordered state of length direction along same straight line.Therefore, identical with above-mentioned situation, by launch iron core split 30 to outer circumferential side, make the be in line ordered state of shape of winding space S, and under this state, iron core split 30 is arranged in the coiling clamping apparatus, thus can be around the copper cash of magnetic pole tooth 31 big density ground coiling capacities.Make two iron core splits, 30 recoveries of having finished coiling on the magnetic pole tooth 31 be semicircular arc and it is docked mutually, can obtain to be the stator of annular.
When adopting the iron core split 30 in the 2nd execution mode, under restoring for the state of circular arc, the extension 31b of each polar arc 31a docks mutually, and be the state that engages one another in the part that is equivalent to described thinner wall section 13c, form the state of the intact oral area in described magnetic pole tooth 31 this middle parts thus, at continuous periphery of interior week formation of each polar arc 31a, this form can improve motor properties thus.
Next, the iron core split 41 of the stator 40 of expression the 3rd execution mode in Figure 10～13.This stator 40 also be two magnetic pole tooths 42 be mutually facing to two-pole stator, be divided into two iron core splits 41 from the substantial middle position of annulus portion 43.Only represent one-sided iron core split 41 among the figure.Two iron core splits 41 also are to make by a plurality of sheet metals of being made by punch ram are carried out lamination, as shown in Figure 10, are semicircular arc in the starting stage of making.In addition, for the part identical, suitably omit its explanation with the 1st and the 2nd execution mode.
The top of the magnetic pole tooth 42 of the iron core split 41 in the 3rd execution mode forms the polar arc 44 with a complete arc-shaped surface.At the outer circumferential side of this iron core split 41, promptly be formed with the incision recess 45 of letter ' M ' shape at the peripheral part of magnetic pole tooth 42.This incision recess 45 has left and right a pair of vertical incision recess 45a and left and right a pair of inclination incision recess 45b.Vertically cut the outer circumferential side that recess 45 is arranged on iron core split 41, become parallel state mutually for two.Two incision recess 45b that tilt tilt along the direction that mutually combines from the incision top (interior all side ends) of vertical incision recess 45a respectively.By this incision recess 45, on magnetic pole tooth 42, form two place's thinner wall section, and this thinner wall section is used as articulated section 44a and works.In winding process,, make this iron core split 41 to outer circumferential side displacement (expansion) by the effect of these 2 articulated section 44a.As shown in Figure 11, till the vertical incision recess 45a butt of incision recess 45 tilted incision recess 45b, this moment, two arc sections 43 were respectively to roughly about 45 ° of displacements of outer circumferential side.Therefore, the winding space S that is positioned at magnetic pole tooth 42 both sides is the state of roughly arranging along the wire of same straight line at its length direction.Like this, each the iron core split 41 in the 3rd execution mode also can launch to outer circumferential side by each articulated section 44a, and winds the line to winding space S under this deployed condition.In winding process, also use with above-mentioned execution mode in identical coiling clamping apparatus 20,21 carry out at a high speed the winding operation of density greatly.In addition, because being in length direction, two winding space S are roughly wire ordered state along same straight line, thereby can avoid copper cash 24 and the end or the arc sections 43 of polar arc 44 to interfere, and this copper cash 24 can be carried out the winding operation of big density since the deep of two winding space S.When electric machine rotational axis heart direction is observed, the winding section M of this moment does not bend, but linear state.
Figure 12 represents the state finished to the winding process of each winding space S.Each iron core split 41 with previous the same two arc sections 43 inside all side displacements by articulated section 44a, thereby is just restored for being circular arc after finishing coiling on the whole.Because iron core split 41 is restored for circular arc, so winding section M also is case of bending along arc sections 43.Like this, by iron core split 41 is restored for circular-arc, two vertical switch-in part 45a just are the state that is parallel to each other, thereby incision recess 45 can be once more to the uncovered state of outer circumferential side.Afterwards, to these incision recess 45 setting-in fixed blocks 46.The material of this fixed block 46 is identical with the material of iron core split 41, also is to carry out a plurality of sheet metals of being made by punch ram superimposed and make.This fixed block 46 is adhesively fixed in the incision recess 45, because these fixed block 46 setting-ins are in incision recess 45, thereby iron core split 41 can be fixed to circular arc.This state representation is in Figure 13.Like this, two iron core splits 41 finishing coiling are docked mutually, thereby make the stator 40 that is annular.
Owing to be embedded with fixed block 46 in the incision recess 45 of outer circumferential side, thereby for being built-in with the motor of this stator 40, its motor characteristic can not be affected.
In Figure 14～Figure 20, represent the stator 50 in the 4th execution mode.Stator 50 in the 4th execution mode is further improvement and structures of making on the basis of basic structure of the stator 1 in above-mentioned the 2nd execution mode.For its parts and structure identical, suitably omit its explanation with the 2nd execution mode.
As shown in Figure 18 and Figure 19, the stator 50 in the 4th execution mode also has stator core 55, this stator core 55 be two magnetic pole tooths 52 be mutually facing to the two-pole stator iron core.This stator core 55 can be divided into two iron core splits 51 from the substantial middle position of its annulus portion 53.As the respective embodiments described above, on the end of one of both ends of two iron core splits 51, be formed with wedge-shaped recess 51a, be formed with protuberance 51b at the other end.With the recess 51a of one of them iron core split 51 and the mutual setting-in of protuberance 51b of another iron core split 51, can make the 51 mutual radial locations of two iron cores like this, form the stator core 55 that roughly is annular thus.Figure 14 and Figure 15 are the state of right side iron core split 51 when not winding the line among expression Figure 18 and Figure 19.
Identical with the 2nd execution mode, be provided with a magnetic pole tooth 52 in the central authorities of the circumferencial direction of this iron core split 51.Be provided with on the top of this magnetic pole tooth 52 and be the polar arc 52a that circular arc links to each other, it extends to both sides along rotor R.Central part at the inner surface of magnetic pole tooth 52 is provided with the switch-in part 56 that is used for launching.This switch-in part 56 have radially the vertical 56a of portion and from the bottom of this vertical 56a of portion to the transverse part 56b of circumferencial direction bifurcated.Because of this switch-in part 56, be formed with thinner wall section 57 at the central part of magnetic pole tooth 52, be positioned on two polar arc 52a of 56 fens both sides of switch-in part in addition, be formed with the extension 52b that extends near opposite side respectively.
On the top of two extension 52b, 52b, respectively to be provided with rectangle engaging protuberance 52c to the side-prominent mode of periphery.On the other hand, in the inner peripheral surface central authorities of thinner wall section 57,, be provided with and be used for the engaging recessed part 57a of the above-mentioned two engaging protuberance 52c of setting-in at the cross part of vertical 56a of portion and transverse part 56b.
All play the effect of articulated section 52d to the bottom of two transverse part 56b of circumferencial direction both sides bifurcated from the vertical 56a of portion.By these two articulated section 52d this iron core split 51 is launched to its outer circumferential side, on the contrary, also can restore and be semicircular arc along the rotor R bending.As shown in Figure 15 and Figure 16, make iron core split 51 crooked recoveries when being semicircular arc, because two engaging protuberance 52c setting-in respectively are fastened among the engaging recessed part 57a on the thinner wall section 57, thereby can make two polar arc 52a rotor R that remains along be the state that circular arc links to each other.Thus, in the present embodiment, constitute the polar arc maintaining part 58 described in the claim by engaging protuberance 52c on two extension 52b and the engaging recessed part 57a on the thinner wall section 57.
As shown in Figure 14, iron core split 51 is launched to outer circumferential side, just can make the winding space S of the circumferencial direction both sides that are positioned at magnetic pole tooth 52 be the wire ordered state of length direction along same straight line by two articulated section 52d.Therefore, identical with the respective embodiments described above, by under this deployed condition, it being set in the coiling clamping apparatus, just can be at the copper cash of the big density ground on every side of magnetic pole tooth 52 coiling capacity.Figure 17 represents to finish the iron core split 51 that take out the coiling back from the coiling clamping apparatus.
At this, in the 4th execution mode, the inner peripheral surface of the arc sections 53 around two winding space S, the inner peripheral surface of polar arc 52a and between the two, all the state with coated insulation material 60 winds the line.Along the circumferential direction expose for example about 4～5mm the end (recess 51a and protuberance 51b) that the length of the end 60a of the outer circumferential side of two insulating material 60 is configured to from arc sections 53 again.Owing between each winding section M and iron core split 51, be coated with insulating material 60, thereby improved its insulation characterisitic, and then improved motor characteristic.
Like this, as shown in Figure 19, it is semicircular arc that the left and right sides iron core split 51 of finishing coiling is restored by its articulated section 52d respectively, engages its corresponding end (recess 51a and protuberance 51b) by butt joint afterwards, makes the stator 50 that is annular.
Therefore, because two polar arc 52a accurately are fixed up reliably along the circular arc of rotor R, thereby utilize the elastic recoil (recovery) etc. of winding section M for being the elastic force of wire ordered state, just can prevent the discrete and distortion of this magnetic pole tooth 52 on dimensional accuracy, can guarantee the dimensional accuracy of this iron core split 51 after bending is restored like this, and then reduce stator 50 discrete on dimensional accuracy and can obtain high efficiency motor.
In addition, adopt the stator 50 in the 4th execution mode, the winding space S of each magnetic pole tooth 52 all is coated with insulating material 60, and at the portion that is bonded with each other of two iron core splits 51 (junction surface that forms by recess 51a and protuberance 51b), because the end 60a of two insulating material 60 overlaps each other, so between this junction surface and the winding section M, also coated by insulating material 60, this point also can be improved the magnetic pole characteristic of stator 50 and obtain high efficiency motor.
Each execution mode for the above-described can be done further change.For example, exemplified the structure that a stator core is divided into two segmentations (two iron core splits 13 in the 1st execution mode), but also can be arc sections along the circumferential direction to be cut at a place and the structure launched at this.At this moment, further launch at the central part of its magnetic pole tooth, can obtain the effect same with above-mentioned execution mode to outer circumferential side by making two iron core splits that launched.
In addition, also can be to utilize the structure that is arranged on the incision position on each magnetic pole tooth and makes the stator core expansion that is annular, at this moment, if expansion stator core, then, thereby can reduce switch-in part, and help simplifying winding process because each magnetic pole tooth also launches to outer circumferential side simultaneously.
In addition, exemplified stator above, but it equally also is applicable to three extremely above stators with two magnetic pole tooths.If three extremely above stators, then comprise a magnetic pole tooth at least and be divided into again or expand into a plurality of segmentations, for each magnetic pole tooth,, also can obtain same effect by under the state that outer circumferential side launches, carrying out winding operation.
And, exemplified above by forming switch-in part, or make it have the structure of articulated section effect by forming thinner wall section, but for the stator core that has separated or launched, for example also can be to use the articulated section of other forms such as swivel pin and structure that magnetic pole tooth launched to outer circumferential side.
In addition, as shown in Figure 5, exemplified and to have carried out lamination by the semicircular arc sheet metal of punch ram and make stator core, and with its structure of launching to wind the line to outer circumferential side, but also can be conversely, as shown in Figure 6, the sheet metal that is deployed condition in the diagram that will be gone out by punch ram carries out lamination and makes stator core, makes it be the structure of semicircular arc by the inside all lateral bendings in its articulated section are bent again after finishing coiling.
In addition, also can this magnetic pole tooth be launched to outer circumferential side by its articulated section, and then the circumferencial direction both sides that the make magnetic pole tooth winding space S that is circular arc is displaced to and is the position that wire is arranged, as shown in fig. 1, when when electric machine rotational axis line direction is observed, make winding section M linearly shape or shape linearly roughly.
Claims (5)
1. stator, its interior all side that are the stator core of annular has a plurality of magnetic pole tooths, be formed with along the polar arc of rotor periphery bending on the top of described magnetic pole tooth, described stator core can launch or be divided into a plurality of segmentations on its circumferencial direction, it is characterized in that: the described magnetic pole tooth of each segmentation is provided with the articulated section, by this articulated section described polar arc is launched to outer circumferential side, so that the winding space that forms in the both sides of described magnetic pole tooth can be respectively to the outer circumferential side displacement.
2. stator according to claim 1 is characterized in that:
Switch-in part is set to form thinner wall section from interior all sides of described magnetic pole tooth, the both ends of this thinner wall section serve as described articulated section.
3. stator according to claim 2, it is characterized in that: have the switch-in part of vertical portion and transverse part to form described thinner wall section from interior all side settings of described magnetic pole tooth, extend extension respectively from two polar arcs that are positioned at these switch-in part both sides, between described thinner wall section and extension, be provided with and be used to stop it that polar arc maintaining part of separating takes place each other, thereby the polar arc that is positioned at described switch-in part both sides is maintained fixed, has one to link to each other along the shape of described rotor bow mutually.
4. stator according to claim 1 is characterized in that:
Peripheral part at described magnetic pole tooth is provided with the incision recess, as described articulated section, described polar arc can be launched with this incision tip side of cutting recess to outer circumferential side, and cut setting-in fixed block in recess at this, with fixing described polar arc, it can not be launched to outer circumferential side.
5. method for winding, interior all sides of stator core have a plurality of magnetic pole tooths, be formed with along the polar arc of rotor periphery bending on the top of described magnetic pole tooth, described stator core can launch or be divided into a plurality of segmentations on its circumferencial direction, it is characterized in that: the described magnetic pole tooth of each segmentation is provided with the articulated section, by this articulated section described polar arc is launched to outer circumferential side, the winding space that is formed on described magnetic pole tooth both sides is at the wire ordered state of its length direction along same straight line, and under this state, carries out winding operation to this winding space.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP335543/2006 | 2006-12-13 | ||
| JP2006335543 | 2006-12-13 | ||
| PCT/JP2007/072179 WO2008072443A1 (en) | 2006-12-13 | 2007-11-15 | Electric motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558547A true CN101558547A (en) | 2009-10-14 |
| CN101558547B CN101558547B (en) | 2013-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780046165.0A Active CN101558547B (en) | 2006-12-13 | 2007-11-15 | Electric motor stator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5172698B2 (en) |
| CN (1) | CN101558547B (en) |
| WO (1) | WO2008072443A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570641A (en) * | 2010-12-15 | 2012-07-11 | 株式会社牧田 | Motor stators |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010030907A1 (en) | 2008-09-12 | 2010-03-18 | Milwaukee Electric Tool Corporation | Field stack for a motor |
| JP5390869B2 (en) * | 2009-01-23 | 2014-01-15 | 株式会社三井ハイテック | Laminated iron core and method for manufacturing the same |
| DE102011088531A1 (en) * | 2011-12-14 | 2013-06-20 | Metabowerke Gmbh | Method for winding the field coils of a stator and stator |
| EP2605385B1 (en) * | 2011-12-14 | 2022-01-26 | Metabowerke GmbH | Method for winding the magnetic coils of a stator and stator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5218904U (en) * | 1975-07-29 | 1977-02-10 | ||
| JPH0998545A (en) * | 1995-09-29 | 1997-04-08 | Mitsubishi Electric Corp | Motor-driven blower and its manufacture |
| JP3466425B2 (en) * | 1997-07-03 | 2003-11-10 | 三菱電機株式会社 | Stator |
| JP2000023397A (en) * | 1998-07-07 | 2000-01-21 | Shibaura Mechatronics Corp | Stator core of motor and manufacturing method of motor using the same |
| JP2000092760A (en) * | 1998-09-10 | 2000-03-31 | Tatsumichi Hanada | Split stator for motor-generator and manufacturer thereof |
| JP2000175386A (en) * | 1998-12-03 | 2000-06-23 | Mitsubishi Electric Corp | Toroidal stator |
| JP2004364444A (en) * | 2003-06-06 | 2004-12-24 | Matsushita Electric Ind Co Ltd | Enclosed electric compressor |
| JP4341829B2 (en) * | 2003-12-08 | 2009-10-14 | 株式会社三井ハイテック | Laminated iron core and method of manufacturing stator using the laminated iron core |
| JP4611272B2 (en) * | 2006-02-28 | 2011-01-12 | 株式会社三井ハイテック | Laminated iron core and method for manufacturing the same |
-
2007
- 2007-11-15 JP JP2008549229A patent/JP5172698B2/en active Active
- 2007-11-15 CN CN200780046165.0A patent/CN101558547B/en active Active
- 2007-11-15 WO PCT/JP2007/072179 patent/WO2008072443A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570641A (en) * | 2010-12-15 | 2012-07-11 | 株式会社牧田 | Motor stators |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008072443A1 (en) | 2008-06-19 |
| CN101558547B (en) | 2013-07-03 |
| JPWO2008072443A1 (en) | 2010-03-25 |
| JP5172698B2 (en) | 2013-03-27 |
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