CN103688445B - The stator of motor and permanent magnet type electric rotary machine - Google Patents
The stator of motor and permanent magnet type electric rotary machine Download PDFInfo
- Publication number
- CN103688445B CN103688445B CN201280034877.1A CN201280034877A CN103688445B CN 103688445 B CN103688445 B CN 103688445B CN 201280034877 A CN201280034877 A CN 201280034877A CN 103688445 B CN103688445 B CN 103688445B
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- Prior art keywords
- coil rack
- flange part
- protuberance
- adjacent coil
- stator
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- 238000004804 winding Methods 0.000 claims abstract description 49
- 239000011810 insulating material Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000005284 excitation Effects 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 230000011218 segmentation Effects 0.000 description 10
- 238000009413 insulation Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/12—Machines characterised by the bobbins for supporting the windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides and can guarantee creepage distance and stator and the permanent magnet type electric rotary machine that can be applied to micro-machine.Comprising yoke core (11) and in the stator (1) of the motor of the multiple tooth cores (12) extended in the radial direction of this yoke core (11), be provided with and be installed on above-mentioned tooth core (12) and the multiple coil racks (13) be made up of insulating material, above-mentioned coil rack (13) comprises the flange part (132 at the both ends supplying the main part (131) of the excitation winding of winding said stator (1) and be formed at this main part (131), 133), the stator (1) of motor is at above-mentioned flange part (132, 133) flange part (132 of internal side diameter, 133) end face of circumferential direction, be provided with and make adjacent coil rack (13) flange part (132 each other, 133) concavo-convex chimeric thus in the circumferential direction by fitting portion connected to each other for above-mentioned multiple coil rack (13).
Description
Technical field
The present invention relates to the stator of motor and be equipped with the permanent magnet type electric rotary machine of this stator.
Background technology
As motor, as servomotor, be such as arranged on the motor in machine or electronic equipment, the small form factor requirements of people to it is endless.
As the method making motor miniaturization, under normal circumstances, increase the winding number of coil, the density improving coil-winding (winding wire) is comparatively effective.
As one of means realizing the method, such stator structure can be adopted.That is, the stator core forming stator (stator) is divided into multiple segmentation iron core.Then, stipulated number winding coil (winding) is pressed to this segmentation iron core each.Then, groove number on demand, is assembled into a circular stator by the segmentation iron core reeling coil.
But, in such stator structure, be formed in the surface of the coil windings insulant on the tooth core of each segmentation iron core, regard as creepage (along face) from the angle of insulation property.Creepage distance (creepage distance) is there is, the beeline along insulant surface namely between two conductive part on this is creepage.
Usually, when the control appliance controlled motor or device operate, the angle for safety and performance is considered, specifies insulating space distance, creepage distance, temperature rising etc.
Creepage distance is such as 2 ~ 3mm for the requirement of the motor of 200V level.
Thus, in motor, this is creepage to cause insulation distance to reduce the problem of (insulating space distance, creepage distance etc.).Especially when making motor miniaturization, require very high to the densification of motor internal, the insulation distance of two conductive part also reduces thereupon, the angle of safety and performance, necessary insulation property are difficult to be protected, and this becomes larger problem.
In the prior art, there has been proposed the stator structure of following motor.
That is, one is the stator winding structure of electric rotating machine of coil (excitation winding) of reeling on stator (stator) across insulated coil skeleton, arranges integrated elastic tongue piece at the two ends of the sidepiece of insulated coil skeleton.By making this tongue piece between each coil windings, can prevent from conducting between coil windings and stator, improving the insulating properties (patent documentation 1) of coil windings.
In addition, its two insulator (insulating element) relating to motor, in the inner side comprising the iron core main body of teeth portion of stator core, 2 insulators of coil resettlement section and inner wall part are had by each teeth portion tool for mounting, the end face of the circumferential direction of this inner wall part is provided with the linking part of staggered jump shape, by this linking part, multiple insulator combination is formed circular stator structure (patent documentation 2).
In addition, in prior art, people also proposed a kind of like this axial gap electric motor (axialgapmotor) being provided with insulator, its insulator is configured to, embed from the both sides of the stator core of H font with the inner peripheral surface covering this stator core, and the periphery of covering stator iron core, but leave the flank of tooth side (with reference to patent documentation 3,4,5,6) in the coil windings portion of stator core.Herein, insulator is provided with two connecting members in the end circumferentially of its flange part, for in the circumferential direction by connected to each other for the iron-core element comprising yoke portion and teeth portion, that is, be provided with for by each iron-core element hook portion that links of ring-type and locking axle of engaging with this hook portion each other centered by rotor of output shaft axle.In addition, insulator is formed as the coil rack shape along the flank of tooth and yoke portion sheet with parallel pair of flanges portion, and the flange-shape of flank of tooth side becomes in the axial direction lower than flank of tooth side.Therefore, the flank of tooth becomes extreme higher position.Thereby, it is possible to the gap between reduction and rotor, reduce Width size.
In addition, people also proposed so a kind of slender type stator, namely, comprise the coil rack that segmentation iron core surrounds by the peripheral part along the I shape segmentation iron core of Splittable stator core, the inner flange of this coil rack is formed engagement groove and combines protruding, and on external flange, form circumference forming surface, use heat reactive resin to carry out the assembling between segmentation iron core and coil rack by insert molding mode etc., they are formed as one (with reference to patent documentation 7,8).
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2000-175393 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-252031 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2008-118833 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2008-125278 publication
Patent documentation 5: Japanese Unexamined Patent Publication 2010-88166 publication
Patent documentation 6: Japanese Unexamined Patent Publication 2011-114993 publication
Patent documentation 7: Japanese Unexamined Patent Publication 2010-154740 publication
Patent documentation 8: Japanese Unexamined Patent Publication 2010-154741 publication
Summary of the invention
The problem that invention will solve
The shape of invention described in patent documentation 1 to insulant is improved, and it uses the shape of coil windings integral coating, that is, make use of insulated coil skeleton as insulant.
But, this insulated coil skeleton is owing to being provided with the elastic tongue piece formed as one at the two ends of its sidepiece, and this tongue piece is between each winding, and therefore the density of coil windings is correspondingly restricted, and there is the problem that can not improve motor performance.
In addition, in invention described in patent documentation 2, coil resettlement section surrounds wherein by the outside insulator that utilization is assembled in a circumferential direction and these two insulators of inner side insulator, and, smears is sprayed to the coil windings of accommodating in the coil resettlement section of this insulator, thus be coated with smears in whole coil windings.
Thus, when spraying smears, should be noted that the outside not making smears escape to insulator.Therefore, the end face of the circumferential direction of the inner wall part of above-mentioned insulator is arranged the linking part of staggered jump shape.But, this can cause its structure to become complicated.
In other words, the linking part of the staggered jump shape that the end of variform 2 kinds of insulators is formed, formed to prevent this smears from flowing out in this coil resettlement section before smears solidification, by the link of the linking part of insulator, at first sight seemingly make the shape that creepage distance increases, but the in fact linking part of insulator also certain Presence of an interface.
Thus, what its result can not have improve to creepage distance, and in the same manner as prior art, the problems referred to above caused because of creepage distance still exist, and can not become the technology solving this problem.
In addition, owing to have employed the structure of being surrounded by coil-winding by the insulator of inner side and the insulator in outside, therefore their assembling is comparatively difficult, is applicable to the miniaturization of motor hardly.
Moreover when spraying smears in the insulation in order to realize coil windings, much less smears, its injection equipment, the labour performing spraying and time are also indispensable, are also not suitable for from the angle of cost.
In addition, the invention described in patent documentation 3 ~ 6, its object is to prevent the gap between the flank of tooth of stator and the magnetic pole strength of rotor from causing magnetic loss occurs.
Invention described in patent documentation 7 ~ 8, its object is to alleviate the vibration produced because of the gap error between rotor and stator.
But they all not only do not consider the creepage distance increased between segmentation tooth core and coil, and, insulator additionally uses and embeds with the inner peripheral surface covering this stator core from the both sides of the stator core of H font, and the periphery of covering stator iron core, but leave the structure of the flank of tooth side in the coil windings portion of stator core.
Therefore, in the invention described in these patent documentations, be hook portion and locking axle at connect mechanism, or be made up of protruding, groove flange shape when, cannot creepage distance be increased and make motor miniaturized further.
For the means of technical solution problem
The present invention is for solving the problem and completing.Its object is to provide a kind of motor and permanent magnet type electric rotary machine, motor (motor can be tackled, motor) miniaturization, have and can guarantee necessary creepage distance from the angle of safety and performance, and the stator structure of micro-machine can be applied to.
In order to achieve the above object, the present invention such as has following technical characteristic.
A stator for motor, comprising: divided multiple tooth core; Inner peripheral surface is axially formed the yoke core of multiple recesses that the leading section for this tooth core inserts; With the multiple coil racks be made up of insulating material for coil winding.Above-mentioned coil rack comprises: have the coil rack main part of the through hole for installing above-mentioned tooth core for above-mentioned coil winding; Be formed in the flange part of the end of the outside diameter of this coil rack main part; With the flange part of end of internal side diameter being formed in this coil rack main part.The flange part of above-mentioned internal side diameter end has the medial surface being formed with jog, above-mentioned coil rack being arranged on above-mentioned yoke core and jog above-mentioned time assembled with one another for adjacent coil rack is fitted together to, the flange part of above-mentioned internal side diameter end be also formed in the circumferential direction extend and the convex sheet of the tabular extended in axial direction.The stator of this motor is formed as by this convex sheet the structure can guaranteeing longer by the creepage distance between above-mentioned coil and above-mentioned tooth core.
In addition, the stator of this motor such as has such feature, that is, the flange part of above-mentioned internal side diameter end extends to the scope exceeded by complete cycle 360 degree of angles obtained divided by the number of this coil rack.
In addition, the stator of this motor such as has such feature, that is, the flange part of above-mentioned outside diameter end extends to the scope exceeded by complete cycle 360 degree of angles obtained divided by the number of this coil rack.
In addition, the stator of this motor such as has such feature, even if that is, the flange part of above-mentioned internal side diameter end and outside diameter end has the shape that also can not reduce at their leading section gauge.
In addition, present invention also offers the permanent magnet type electric rotary machine of the stator being such as equipped with above-mentioned motor.
The effect of invention
According to the present invention, existing technical problem can be solved, can obtain from the angle of safety and performance the creepage distance guaranteeing necessity, and the stator structure of the motor of the insulant in coil windings portion and the creepage distance of coil rack can not be reduced.Thus, just micro-machine can be applicable to without the need to changing voltage specification.
In addition, according to the present invention, even if determine at (the tooth core) internal diameter of stator and the groove number of stator, its internal diameter cannot be increased, increase its groove number or change when distributing to the circumferential direction length of each tooth core, also can obtain from the angle of safety and performance the creepage distance guaranteeing necessity, obtain the stator to the motor wanting motor miniaturized further also can be suitable for.
Thereby, it is possible to provide small-sized and high performance electric rotating machine.
Accompanying drawing explanation
Fig. 1 is the structure chart of the general configuration of the stator representing motor of the present invention.
The structure of the insulating element be arranged on the tooth core of stator of the present invention and coil rack is amplified the structure chart represented by Fig. 2.
Fig. 3 be by multiple Fig. 2 coil rack combination time enlarged drawing.
Fig. 4 is the exploded perspective view of the major part representing the yoke core of stator of the present invention, tooth core and coil rack.
Fig. 5 is the exploded perspective view of the assembling for illustration of the yoke core of stator of the present invention, tooth core and coil rack.
Fig. 6 is the figure schematically showing creepage distance of the prior art.
Embodiment
Referring to accompanying drawing, embodiments of the present invention are described.
Embodiment
Fig. 1 is the structure chart of the stator structure of the critical piece included by stator representing motor of the present invention, a part for the coil rack of Fig. 1 (monomer) is amplified the structure chart representing the structure of coil rack by Fig. 2, Fig. 3 is the structure chart combination of multiple coil rack be described the combination each other of adjacent coil rack, Fig. 4 and Fig. 5 represents the yoke core of stator of the present invention, tooth core and the major part of coil rack and the exploded perspective view of package assembly.
In these figure, 1 expression interacts with the rotor (not shown) of motor and produces the stator (stator) of spinning momentum, and this stator comprises cylindric yoke core (yoke portion iron core) 11 and is arranged on the last mentioned features inside the cylinder of this yoke core.Stator also comprises multiple T-shaped tooth core 12 be made up of segmentation iron core, there are the multiple coil racks 13 be made up of insulating element of the through hole inserted for the plurality of tooth core, and be winding and installed in the coil windings (excitation winding) 14 on the plurality of coil rack respectively.
By adopting the tooth core 12 of segmentation in stator 1, compared with adopting the situation of integrated iron core in the stator, copper cash can be made fitly to reel.
That is, because coil is reeled to high-density, can suppress " copper loss " that cause energy conversion efficiency to reduce, the performance of motor can be improved.
In the present embodiment, tooth core 11 and coil 14 are in the situation that groove number is 12.But also need not be defined in this number.In addition, in the inner side of coil rack 13, be configured with the rotor (roter) installed by bearing on the rotary shaft, but omitted in the present embodiment, herein and not shown.
Coil rack 13 as shown in Figure 2, is arranged on multiple tooth core 12 individually in the mode covered by tooth core 12.Coil rack 131 comprises the coil rack main part 131 of the tubular installed for coil 14 winding, the flange part 132(of the integrated tabular axially extended in an end of the yoke core side (outside diameter) of this coil rack main part 131 is with reference to Fig. 4), and the flange part 133(of the integrated tabular axially extended in the rotor-side (internal side diameter) of this coil rack main part 131 is with reference to Fig. 4).
The coil rack main part 131 of coil rack 13 axially extends as illustrated in fig. 4, and its inside is provided with the through hole 1311 of a part 121 insertion for tooth core 12.In addition, in order to coil 14 being wound on coil rack main part 13, be provided with the coil windings spatial portion 6 surrounded with the flange part 132,133 of the both sides of this coil rack main body by this coil rack main part 131.
The flange part 132,133 of coil rack 13 is formed as insulation (creepage distance L) between the end of the coil windings on the end of the coil rack main body 131 can guaranteeing adjacent coil rack 13 and the end 122 of tooth core 12 internal side diameter and the intensity after assembling.
That is, flange part 132,133 is separately for extending in axial direction and the tabular (convex sheet) extended in a circumferential direction.Make flange part at direction of principal axis and circumferentially large than coil rack main part 131, to be formed above-mentioned coil windings spatial portion 6 by this convex sheet and coil rack main part.
Like this, make the shape of the flange part 132,133 at the two ends being integrally formed in coil rack main part 131 at direction of principal axis and circumferentially extend, protrude.Thereby, it is possible to guarantee that creepage distance L(between the coil windings 14 that is wound on coil rack main part 131 and the end 122 of the internal side diameter of tooth core 12 be arranged in the through hole 1311 of coil rack main part is with reference to Fig. 3) longer.Be described further below about coil rack combination each other.
In addition, the clockwise direction of the flange part 132 of the outside diameter of coil rack 13 and anticlockwise both ends of the surface 1321,1322 are formed as each other to rolling oblique inclined plane, make by time assembled with one another for multiple coil rack, such as shown in Figure 3, the flange part of adjacent coil rack both ends of the surface each other relatively and contiguity.
The flange part 133 of the internal side diameter of coil rack 13, in the mode that R is bending a little of the composition surface relative to itself and coil rack main part 131, the plate shape that the thickness being formed to extend in the circumferential direction is different.That is, as shown in the figure, the plate shape of side in the counterclockwise direction, is formed as there is jump relative to the plate shape of clockwise side.
Its object is to, when by coil rack combination with one another, realize the good combination of flange part 133, and guarantee the creepage distance that this composition surface is brought.
In addition, side face side within it, is formed with the jog that can be fitted together to each other, with when by adjacent coil rack combination with one another, such as, makes two coil racks touch each other as shown in Figure 3.Wherein, this jog axially extends to form in whole face at the inner peripheral surface of flange part 133 as shown in Figure 4.
Namely, in the end comprising the plate shape of flexure plane R of flange part 133, be formed with the jog 1331,1332,1333 relative with the end of the flange part of adjacent coil rack, wherein the protuberance (protuberance 1334 being configured at the coil rack in circumferential direction on the right side of in figure) of a side is chimeric with the recess 1331 of the opposing party.
Specifically, the protuberance 1332,1333 of flange part 133 extends in the circumferential direction in the mode of surrounding recess 1331.This recess 1331, when combining with adjacent coil rack, as illustrated in fig. 3, be formed in adjacent coil rack flange part an end on protuberance 1334 chimeric.
In diagram, protuberance 1332, when combining with adjacent right-hand line ring framework, as illustrated in fig. 3, overlaps with the upper surface of the protuberance 1334 of the flange part 133 of adjacent coil rack 13.Further, its leading section have can with the length of the contacts side surfaces of the coil rack main part 131 of adjacent windings skeleton.
Form protuberance and recess by such mode, creepage distance can be increased further, and the more important thing is that making whole of the concavo-convex direction of principal axis throughout flange part 133 go up as shown in Figure 4 extends.In other words, make flange part 133 be formed as comparatively large, whole coil rack main part---is namely not only the end of coil rack main part 131, is also comprised central portion---and surrounds from the both sides entirety of coil rack main part 133.
Like this, make the convex sheet 1332,1334 of flange part 133 not only in the end of coil rack main body 1331, also comprise central portion, axially extend.Thus, compared with the creepage distance L ' only forming the situation lower coil skeleton joint portion place each other of the coil rack of flange part in the end of coil rack main body with the use shown in Fig. 6, the creepage distance of the amount of this convex sheet can be guaranteed.Herein, the creepage distance L ' in Fig. 6 is such as the value only when the end of coil rack main body has the coil rack shape of concavo-convex joint portion shown in patent documentation 2.Its result, similarly compares specification based on creepage distance, with the amount of this distance correspondingly, can make that stator is miniaturized, lightness.
Protuberance 1333 is configured to, and overlaps with the position of protuberance 1334 on the downside of it of the flange part of adjacent coil rack.In addition, there is the contacts side surfaces with the flange part of adjacent coil rack, and the length shorter than protuberance 1332.
Be formed with raised part 1334 in the other end of flange part 133, the position that this protuberance is formed as reducing one deck from the endface position of coil rack main part 131 extends in the circumferential direction.
Namely, in the end (right side of Fig. 2) of a side of the flange part 133 of coil rack 13, be formed for the chimeric recess 1331 of the protuberance 1334 of the flange part of adjacent coil rack, two protuberances 1332,1333 different with the length clipping the protuberance 1334 that this is fitted together to from upper and lower.
In addition, in the end (left side of Fig. 2) of the opposing party of the flange part 133 of coil rack 13, the protuberance 1334 in the recess 1331 of the flange part for being fitted to adjacent coil rack and order difference part 1335,1336 is formed with.
That is, the both ends of flange part 133 are formed when by adjacent coil rack combination with one another, can overlap in the vertical direction as shown in Figure 3 and carry out the concaveconvex shape that combines in the mode making the two sides at these both ends touch each other.The concavo-convex respective thickness of flange part 133 is respectively about 0.3mm.The length of the convex sheet extended in the circumferential direction of flange part 133 is about 1 ~ 2mm.
Then, be described with reference to Fig. 4, Fig. 5 assembling to coil rack etc.First, the coil rack main part 131 of coil rack 13 reels the coil of necessary number of times.
Then, a part 121 for T-shaped tooth core 12 is inserted in the through hole 1311 of coil rack main part 131.Its state representation in Figure 5.
Afterwards, make the leading section of a part 121 for the tooth core 12 of the external diameter side protruding into coil rack 13, from the position shown in Fig. 5, in figure, upside is axially inserted in the recess 111 extended at direction of principal axis be formed on yoke core 11, installs successively thus.
Now, coil rack is slided and slides into side, other end with the protuberance 1335 of the side making adjacent coil rack flange part 133 each other from an end face of the recess 1334 of the opposing party, its result, the jog 1331 ~ 1333 of one end face side of flange part 133 is chimeric with the jog 1334 ~ 1336 of side, other end, with the combinations of states shown in Fig. 3.
Herein, each several part of tooth core 12 and coil windings (excitation winding) 14, by being arranged on coil rack 13 on tooth core 12 and insulated from each other.Now, the pitch of the laps winding portion 14 formed from winding coil 14 arrives among the distance of tooth core 12 along coil winding space 6 and coil surface, and the shortest distance L determines insulation property as creepage distance minimum value.
In above-described embodiment, in the surface-pathlength that this arrives along coil winding table face, there is the fitting portion of the jog be arranged on the end of the flange part 133 of coil rack 13.Being fitted together to by this jog, and the mode using two protuberances of a side of coil rack to clip with the protuberance of the opposing party by adjacent coil rack overlaps with it, increase its surface-pathlength, therefore, it is possible to creepage distance is guaranteed longer, its result, the setting of necessary creepage distance can be met the angle of safety and performance, can miniaturization be realized simultaneously.
In other words, present embodiment uses the above-mentioned shape of flange part 133, from the coil rack main body 131 of a side of coil rack adjacent one another are and the butt part of the protuberance 1332 of flange part 133, through the surface of this protuberance, the protuberance 1334 of the flange part 133 of coil rack main body 131 of the coil rack of the opposing party, the flange part of the coil rack of this opposing party and then arrive the distance of protuberance 1333 of flange part 133 of coil rack of the opposing party, become creepage distance L.By adopting such structure, can its creepage distance be guaranteed longer, contrasting with the performance of identical conditions under prior art, with the amount of this creepage distance guaranteed more correspondingly, also can tackle the miniaturization of motor.
In above-mentioned present embodiment, describe and utilize the jog that is arranged on relative flange part and carry out the example that is fitted together to, but chimeric itself is not required, as long as extending to the scope exceeding the angle that each coil rack of being obtained divided by the number of coil rack by complete cycle 360 degree distributes by making flange part, the flange part of relative coil rack being existed in the radial direction and overlaps.Thereby, it is possible to guarantee its creepage distance significantly, so effect same as the previously described embodiments can be obtained.
In addition, about the thickness of the insulant of the part of this coincidence of formation, when there is tapering (wedge degree), being less than the part of the minimum necessary thickness by material behavior regulation, can not being judged as and there is insulant.Therefore, the present invention must be shaped to the shape making the end of insulant there is not tapering.
Industrial Availability
The present invention can be applied to the permanent magnet type electric rotary machine with said stator structure.
Description of reference numerals
The stator of 1 motor
11 yoke cores (yoke portion iron core)
12 tooth cores
13 insulated coil skeletons
131 coil rack main parts
132,133 flange parts
14 coils (coil windings portion)
Claims (5)
1. a stator for motor, is characterized in that, comprising:
Divided multiple tooth core;
The yoke core of multiple recesses that the leading section for this tooth core inserts axially is formed at inner peripheral surface; With
For the multiple coil racks be made up of insulating material of coil winding,
Described coil rack comprises: have the coil rack main part of the through hole for installing described tooth core for described coil winding; Be formed in the flange part of the outside diameter end of this coil rack main part; With the flange part of internal side diameter end being formed in this coil rack main part,
The flange part of described internal side diameter end has the medial surface forming jog, described coil rack being installed on described yoke core and jog described time assembled with one another for adjacent coil rack is fitted together to,
The flange part of described internal side diameter end be formed as in the circumferential direction extend and the convex sheet of the tabular extended at direction of principal axis,
A tip inside face of the flange part of described convex sheet in described internal side diameter end is formed for the chimeric recess of the protuberance of the flange part of adjacent coil rack, and on another tip inside face, form the protuberance be fitted in the recess of the flange part of adjacent coil rack
By time assembled with one another for adjacent coil rack,
In the recess of an end side of the flange part of described adjacent coil rack, install the protuberance of another end side of adjacent coil rack, the two sides of side, both ends contacts with each other,
The protuberance of another end side of the flange part of described adjacent coil rack is installed in the recess of an end side of adjacent coil rack, and the two sides of side, both ends contacts with each other,
By the jog of described convex sheet, can guarantee that the creepage distance between described coil and described tooth core is longer than the thickness in the radial direction of flange part.
2. a permanent magnet type electric rotary machine, is characterized in that:
Be equipped with the stator of motor according to claim 1.
3. a stator for motor, is characterized in that, comprising:
Divided multiple tooth core;
The yoke core of multiple recesses that the leading section for this tooth core inserts axially is formed at inner peripheral surface; With
For the multiple coil racks be made up of insulating material of coil winding,
Described coil rack comprises: have the coil rack main part of the through hole for installing described tooth core for described coil winding; Be formed in the flange part of the outside diameter end of this coil rack main part; With the flange part of internal side diameter end being formed in this coil rack main part,
Be formed at described coil rack main part internal side diameter end flange part a tip inside face on formed for the chimeric recess of the protuberance of the flange part of adjacent coil rack, and another tip inside face of the flange part in described internal side diameter end is formed the protuberance be fitted in the recess of the flange part of adjacent coil rack
By time assembled with one another for adjacent coil rack,
In the recess of an end side of the flange part of described adjacent coil rack, install the protuberance of another end side of adjacent coil rack, the two sides of side, both ends contacts with each other,
The protuberance of another end side of the flange part of described adjacent coil rack is installed in the recess of an end side of adjacent coil rack, and the two sides of side, both ends contacts with each other,
The flange part of described internal side diameter end extends to the scope exceeded by complete cycle 360 degree of angles obtained divided by the number of this coil rack.
4. a stator for motor, is characterized in that, comprising:
Divided multiple tooth core;
The yoke core of multiple recesses that the leading section for this tooth core inserts axially is formed at inner peripheral surface; With
For the multiple coil racks be made up of insulating material of coil winding,
Described coil rack comprises: have the coil rack main part of the through hole for installing described tooth core for described coil winding; Be formed in the flange part of the outside diameter end of this coil rack main part; With the flange part of internal side diameter end being formed in this coil rack main part,
Be formed at described coil rack main part internal side diameter end flange part a tip inside face on be formed for the chimeric recess of the protuberance of the flange part of adjacent coil rack, and the protuberance another tip inside face of the flange part in described internal side diameter end is formed in the recess of the flange part being fitted to adjacent coil rack
By time assembled with one another for adjacent coil rack,
In the recess of an end side of the flange part of described adjacent coil rack, install the protuberance of another end side of adjacent coil rack, the two sides of side, both ends contacts with each other,
The protuberance of another end side of the flange part of described adjacent coil rack is installed in the recess of an end side of adjacent coil rack, and the two sides of side, both ends contacts with each other,
The flange part of described outside diameter end extends to the scope exceeded by complete cycle 360 degree of angles obtained divided by the number of this coil rack.
5. a stator for motor, is characterized in that, comprising:
Divided multiple tooth core;
The yoke core of multiple recesses that the leading section for this tooth core inserts axially is formed at inner peripheral surface; With
For the multiple coil racks be made up of insulating material of coil winding,
Described coil rack comprises: have the coil rack main part of the through hole for installing described tooth core for described coil winding; Be formed in the flange part of the outside diameter end of this coil rack main part; With the flange part of internal side diameter end being formed in this coil rack main part,
Be formed at described coil rack main part internal side diameter end flange part a tip inside face on be formed for the chimeric recess of the protuberance of the flange part of adjacent coil rack, and the protuberance another tip inside face of the flange part in described internal side diameter end is formed in the recess of the flange part being fitted to adjacent coil rack
By time assembled with one another for adjacent coil rack,
In the recess of an end side of the flange part of described adjacent coil rack, install the protuberance of another end side of adjacent coil rack, the two sides of side, both ends contacts with each other,
The protuberance of another end side of the flange part of described adjacent coil rack is installed in the recess of an end side of adjacent coil rack, and the two sides of side, both ends contacts with each other,
The thickness of the butt of described protuberance is identical with the thickness of circumferential direction end.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-264363 | 2011-12-02 | ||
| JP2011264363A JP5785863B2 (en) | 2011-12-02 | 2011-12-02 | Electric motor stator and permanent magnet rotating electric machine |
| PCT/JP2012/066179 WO2013080597A1 (en) | 2011-12-02 | 2012-06-25 | Motor stator and permanent magnet rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103688445A CN103688445A (en) | 2014-03-26 |
| CN103688445B true CN103688445B (en) | 2016-03-02 |
Family
ID=48535076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280034877.1A Expired - Fee Related CN103688445B (en) | 2011-12-02 | 2012-06-25 | The stator of motor and permanent magnet type electric rotary machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5785863B2 (en) |
| CN (1) | CN103688445B (en) |
| TW (1) | TWI495227B (en) |
| WO (1) | WO2013080597A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2874291B1 (en) * | 2013-11-19 | 2018-06-06 | Société Industrielle de Sonceboz S.A. | Electric motor |
| DE112015004858T5 (en) * | 2014-10-27 | 2017-08-03 | Mitsubishi Electric Corp. | Connection method, connecting body, stator for a dynamo-electric machine and method for manufacturing a stator for a dynamo-electric machine |
| US10008896B2 (en) * | 2015-02-18 | 2018-06-26 | Mitsubishi Electric Corporation | Rotary electric machine and insulator for rotary electric machine |
| CN107171465B (en) * | 2016-03-07 | 2020-09-08 | 德昌电机(深圳)有限公司 | Stator and motor with same |
| TWI627818B (en) * | 2017-01-26 | 2018-06-21 | 王文民 | Permanent magnet variable magnetic circuit generator |
| DE102017206597A1 (en) * | 2017-04-19 | 2018-10-25 | Continental Automotive Gmbh | Pole tooth module for an electric machine, active part with a pole tooth module and electric machine |
| JP6932546B2 (en) * | 2017-05-19 | 2021-09-08 | エドワーズ株式会社 | A vacuum pump, a magnetic bearing device used in the vacuum pump, and an annular electromagnet. |
| JP2019024280A (en) * | 2017-07-24 | 2019-02-14 | 多摩川精機株式会社 | Insulation bobbin and motor |
| CN107887991A (en) * | 2017-11-14 | 2018-04-06 | 珠海凯邦电机制造有限公司 | Stator unit structure, stator structure and motor |
| EP3648307A1 (en) * | 2018-11-05 | 2020-05-06 | Siemens Aktiengesellschaft | Tooth cap for a single tooth |
| CN109660035A (en) * | 2018-12-20 | 2019-04-19 | 中山市中科智能制造研究院有限公司 | The manufacturing method of motor, block stator and block stator |
| EP3975385A4 (en) * | 2019-05-21 | 2022-12-28 | LG Magna e-Powertrain Co., Ltd. | Split core assembly and stator comprising same |
| KR102171455B1 (en) | 2019-07-15 | 2020-10-29 | 엘지전자 주식회사 | Motor |
| KR102317047B1 (en) | 2019-07-25 | 2021-10-25 | 엘지전자 주식회사 | Stator and Motor having the same |
| CN117280572A (en) * | 2021-05-24 | 2023-12-22 | 三菱电机株式会社 | Insulator, stator, rotating electrical machine, method for manufacturing stator, and method for manufacturing rotating electrical machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007306684A (en) * | 2006-05-10 | 2007-11-22 | Daikin Ind Ltd | Motor and manufacturing method therefor |
| JP2011172445A (en) * | 2010-02-22 | 2011-09-01 | Daikin Industries Ltd | Armature core, armature, armature core manufacturing method, and armature manufacturing method |
-
2011
- 2011-12-02 JP JP2011264363A patent/JP5785863B2/en not_active Expired - Fee Related
-
2012
- 2012-06-25 CN CN201280034877.1A patent/CN103688445B/en not_active Expired - Fee Related
- 2012-06-25 WO PCT/JP2012/066179 patent/WO2013080597A1/en active Application Filing
- 2012-07-02 TW TW101123772A patent/TWI495227B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW201325028A (en) | 2013-06-16 |
| JP5785863B2 (en) | 2015-09-30 |
| JP2013118749A (en) | 2013-06-13 |
| WO2013080597A1 (en) | 2013-06-06 |
| TWI495227B (en) | 2015-08-01 |
| CN103688445A (en) | 2014-03-26 |
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