CN102856990B

CN102856990B - Method for manufacturing stator, rotating machine, and insulation member

Info

Publication number: CN102856990B
Application number: CN201210144967.8A
Authority: CN
Inventors: 中村重贵
Original assignee: SUZHOU AICHI TECHNOLOGY Co Ltd
Current assignee: SUZHOU AICHI TECHNOLOGY Co Ltd
Priority date: 2011-07-01
Filing date: 2012-05-11
Publication date: 2015-05-27
Anticipated expiration: 2032-05-11
Also published as: JP5829059B2; CN102856990A; JP2013017280A

Abstract

The present invention provides a method for manufacturing a stator, a rotating machine, and an insulation member, and relates to a technique capable of closely arranging the insulation member onto a stator core. The insulation members (120, 130) made by resin are arranged at two axial sides of the stator core (100), at this moment, insulation member end faces (124, 134) of the insulation members (120, 130) are opposite to stator core end faces (104a, 104b) of the stator core (100). A concave part (105) and convex parts (125, 135) forming a positioning unit are formed on the stator core end faces (104a, 104b) and the insulation member end faces (124, 134). In addition, on the insulation member end faces (124, 134), concave parts (126, 136) are formed around the convex parts (125, 135).

Description

Stator, whirler and insulating component manufacture method

Technical field

The present invention relates to the stator of whirler, particularly relate to the stator of the insulating component of the axial both sides that there is stator core and be configured in stator core.

Background technology

The known concentrated winding method of winding mode as stator winding.Such as, patent documentation 1 discloses to adopt and concentrates winding method to the stator of the stator winding that reels.

Stator shown in patent documentation 1 has stator core, is configured in the insulating component of the axial both sides of stator core.

Stator core is by stacked for the electromagnetic steel plate die-cut by process for stamping etc. and form, and has stator core end face in axial both sides.Insulating component is integrally formed by resin, has insulating component end face in axial side.Stator winding, under being configured in the state (insulating component end face is configured to and stator core end face state in opposite directions) of the axial both sides of stator core, is directly wound on stator core and insulating component at insulating component.

In addition, in the stator shown in patent documentation 1, be formed with recess at stator core end face, be formed with the protuberance that can be entrenched in the recess being formed at stator core end face at insulating component end face.By the protuberance being formed at insulating component end face is entrenched in be formed at stator core end face recess in, insulating component is positioned on stator core, prevent thus stator core and insulating component skew.

Patent documentation 1:JP JP 2004-194413 publication.

If form stator core by stacked for the electromagnetic steel plate die-cut by impact style etc., then the boundary portion be formed between the recess of stator core end face and stator core end face becomes sharp-pointed horn shape (edge).In addition, when being integrally formed insulating component by resin, the root being formed at the protuberance of insulating component end face becomes curved surface (hollows (R face)).

In existing stator, form protuberance in the mode of directly giving prominence to from insulating component end face.Therefore, when insulating component being configured in the axial both sides of stator core, because the edge (edge of the boundary portion between recess and stator core end face) of recess and the root (curved surface of the boundary portion between protuberance and insulating component end face) of protuberance abut against, so produce gap (rocking) between stator core end face and insulating component end face.Further, if produce gap between stator core end face and insulating component end face, then insulating component may be made damaged because of the take-up force being wound on the stator winding on stator core and insulating component, in addition, insulating component may come off from stator core end face.

Summary of the invention

The present invention proposes in view of such situation, its object is to provide the technology that insulating component can be configured in closely on stator core.

The present invention forms following stator, whirler, insulating component manufacture method.

In addition, in the following description, " axis " represents, under being supported for the state that can rotate relative to stator at rotor, by the direction of the line (hereinafter referred to as " center line of stator ") at the center of rotor.In addition, " circumference " represents, under being supported for the state that can rotate relative to stator at rotor, when observing cross section perpendicular to axial direction, and the circumferencial direction centered by the center line of stator.In addition, " radial direction " represents, under being supported for the state that can rotate relative to stator at rotor, when observing cross section perpendicular to axial direction, by the direction of the center line of stator.

An invention relates to the stator of whirler.Stator of the present invention has stator core, insulating component, stator winding.

Typically, stator core is made up of stacked multiple electromagnetic steel plates, has stator core end face in axial both sides.Insulating component is configured in the axial both sides of stator core, and side in the axial direction has insulating component end face.In addition, insulating component is integrally formed by the material with insulation characterisitic, is typically integrally formed by the resin with insulation characterisitic, has: the first component, when observing cross section perpendicular to axial direction, circumferentially extends; Multiple second component, when observing cross section perpendicular to axial direction, circumferentially spaced compartment of terrain is configured in the radially inner side of the first component, and circumferentially extends; Multiple connecting elements, for connecting the first component and each second component.Usually, stator core has: yoke, when observing cross section perpendicular to axial direction, circumferentially extends; Multiple tooth, when observing cross section perpendicular to axial direction, extends from yoke to radially inner side.Each tooth has: tooth base portion, extends from yoke to radially inner side; Tooth leading section, is arranged on the front of tooth base portion, circumferentially extends, and is formed with tooth front end face in the side contrary with yoke side.First component of insulating component, second component and connecting elements are configured in and the yoke of stator core, tooth leading section and tooth base portion position in opposite directions respectively.Stator winding is wound on stator core and insulating component.As the winding mode of stator winding, typically adopt the concentrated winding method be directly wound on the tooth base portion of stator core and the connecting elements of insulating component.

The stator core end face of stator core is formed with the first recess, the insulating component end face of insulating component is formed with the protuberance that can be entrenched in and be formed in the first recess of stator core end face.In addition, on insulating component end face, be formed around protuberance from the second recessed recess of insulating component end face.That is, insulating component end face is formed from the second recessed recess of insulating component end face, and in the second recess, is formed with the protuberance that leading section axially gives prominence to from insulating component end face.

The positioning unit be positioned at by insulating component (insulating component end face) on stator core (stator core end face) is configured for by the first recess be formed on stator core end face and the protuberance be formed on insulating component end face.The shape of the first recess and protuberance can be set as making protuberance to be entrenched in suitable shape in the first recess.In addition, the quantity of the combination of the first recess and protuberance, forming position can suitably set.In addition, the forming position of the first recess is preferably arranged on the position that the magnetic flux of expectation can be made by tooth base portion.

The shape of the second recess is set as, when insulating component being configured in the axial both sides of stator core, can prevent because the edge (edge of the boundary portion of the first recess and stator core end face) of the first recess and the root (curved surface of the boundary portion of protuberance and insulating component end face) of protuberance abut against and produce the suitable shape in gap between insulating component end face and stator core end face.Typically, under being set as the state do not abutted with the root of protuberance at the edge of the first recess, insulating component end face is connected to the shape on stator core end face.

In the present invention, because on insulating component end face, the second recess is formed with, so can prevent because the edge of the first recess and the root of protuberance abut against and produce gap between insulating component end face and stator core end face around the protuberance forming positioning unit.Thereby, it is possible to make insulating component be close to stator core.

The shape etc. of protuberance and the forming position of the second recess on insulating component end face, the second recess can suitably set.

As a mode, protuberance at least partially and being formed at least partially in the part corresponding with the first component of insulating component end face of the second recess.In addition, the major part (comprising all) of protuberance can be formed in the part corresponding with the first component of insulating component end face with the major part (comprising all) of the second recess." being formed at least partially in the part corresponding with the first component of insulating component end face of protuberance (the second recess) " this structure comprise " major part of protuberance (the second recess) is formed in the part corresponding with the first component of insulating component end face " structure, " protuberance (the second recess) stride across be formed in insulating component end face the part corresponding with the first component and the part corresponding with connecting elements on " structure.

" part corresponding with the first component of insulating component end face " represents, " on insulating component end face, the region that the line intersected by side (inner peripheral surface of radially inner side and the outer peripheral face of radial outside) and the insulating component end face of the radial both sides of the first component surrounds ".In addition, " part corresponding with connecting elements of insulating component end face " represents, " on insulating component end face, the region that the line intersected by the side (week left surface to the left and week right flank to the right) of the circumferential both sides of connecting elements, the inner peripheral surface of radially inner side of the first component and the outer peripheral face of the radial outside of second component and insulating component end face surrounds ".

In the manner, because being formed in protuberance at least partially in the part corresponding with the first component of insulating component end face, so can by can being formed at least partially in the part corresponding with yoke of stator core end face of the first recess of fitting projection.Will by the magnetic flux of the tooth base portion of stator core thereby, it is possible to prevent the first recess from hindering.

In other mode, protuberance be formed in the part corresponding with the first component of insulating component end face at least partially, the second recess stride across the part corresponding with the first component that be formed in insulating component end face and and the corresponding part of connecting elements between.

In the manner, the second recess is formed in the part corresponding with connecting elements of insulating component end face.Thus, when being integrally formed insulating component by materials such as resins, the mobility of material can be improved, thus the insulating component of high-quality can be obtained.In addition, the thickness (radial thickness of the first component and second component, the axial width of connecting elements) of insulating component can be made roughly even, prevent the situation of insulating component generation warpage, distortion.In addition, the use amount of material can be reduced.Especially, in the present embodiment, second recess stride across be formed in insulating component end face the part corresponding with the first component and the part corresponding with connecting elements on, thus with form the situation of recess respectively in the part corresponding with the first component of insulating component end face and the part corresponding with connecting elements of insulating component end face compared with, the thickness of insulating component can be made evenly, and the use amount of material can be reduced further.

In addition, when stacked form stator core by die-cut electromagnetic steel plates such as impact styles, worry due to overlap, turned-down edge etc., the close contact of the end (all left end to the left and week right-hand end to the right) of the circumferential both sides of the tooth base portion of stator core reduces, the rigidity of stator core is reduced, and produces sound, vibration.In the manner, the connecting elements of insulating component has the sidewall (all left side walls to the left and week right side wall to the right) of formation second recess in the circumferential both sides across the second recess, thus the end of the circumferential both sides of the tooth base portion of stator core is pressed by the sidewall being in the circumferential both sides of connecting elements of insulating component in the axial direction.Thereby, it is possible to improve the close contact of the end of the circumferential both sides of the tooth base portion of stator core, improve the rigidity of stator core, and the generation of sound-inhibiting, vibration.

In other different modes, the second recess that above-mentioned striding across is formed between the part corresponding with the first component of insulating component end face and the part corresponding with connecting elements is formed with the intercommunicating pore being communicated with connecting elements in the axial direction.As long as intercommunicating pore be communicated with connecting elements at least partially.

When the whirler having the intercommunicating pore being communicated with connecting elements in the axial direction and be formed at the stator on the second recess is used as the drive motor of compressor, refrigerant, refrigerator wet goods medium can not be trapped in the second recess, and flow via intercommunicating pore.Thereby, it is possible to effectively cool stator winding, stator core etc.

In other other different modes, protuberance at least partially and being formed at least partially in the part corresponding with the first component of insulating component end face of the second recess, and be formed with the 3rd recess in the part corresponding with connecting elements of insulating component end face.As long as being formed at least partially in the part corresponding with connecting elements of insulating component end face of the 3rd recess.

In the manner, because be formed with the 3rd recess in the part corresponding with connecting elements of insulating component end face, so identical with the mode that the second above-mentioned recess is formed in the part corresponding with connecting elements of insulating component end face, the mobility of material can be improved and obtain the insulating component of high-quality, the thickness of insulating component is made roughly evenly to prevent insulating component generation warpage, distortion, the use amount of material can be reduced, improve the close contact of the end of the circumferential both sides of the tooth base portion of stator core, improve the rigidity of stator core.In addition, in the manner, because the part wall thickness between the second recess and the 3rd recess, so with the second recess stride across be formed in insulating component end face the part corresponding with the first component and the part corresponding with connecting elements on situation compared with, the intensity of connecting elements can be improved, the generation of sound-inhibiting, vibration.

In other other different modes, the 3rd above-mentioned recess is formed with the intercommunicating pore being communicated with connecting elements in the axial direction.As long as intercommunicating pore be communicated with connecting elements at least partially.

When the whirler having the intercommunicating pore being communicated with connecting elements in the axial direction and be formed in the stator on the 3rd recess is used as the drive motor of compressor, refrigerant, refrigerator wet goods medium can not be trapped in the 3rd recess, and flow via intercommunicating pore.Thereby, it is possible to effectively cool stator winding, stator core etc.

In other other different modes, being formed at least partially in the part corresponding with connecting elements of insulating component end face of at least partially with the second recess of protuberance.In addition, the major part of protuberance

(comprising all) can be formed in the part corresponding with connecting elements of insulating component end face with the major part (comprising all) of the second recess.

The connecting portion of insulating component and the tooth base portion of stator core are wound with stator winding, by the take-up force of stator winding, keep the protuberance that is formed on connecting portion and be formed in the chimerism between the first recess on tooth base portion.Thus, in the manner, the skew of insulating component and stator core can be prevented more reliably.

In addition, at the second recess at least partially, when preferred major part (comprising all) is formed in the part corresponding with connecting elements of insulating component end face, the size (surrounding the minimum diameter of the circle of the outer peripheral face of the first component) of the outer peripheral face of the first component of insulating component can be reduced.Therefore, when being contained in by the rotating machine sets of the stator with the manner on compressor etc., can prevent the outer peripheral face of the first component of insulating component from interferenceing with miscellaneous part.In addition, can guarantee at the outer circumferential side of the first component of insulating component the cooling channel that is communicated with diametrically.

In other other different modes, the first component comprises Part I and is positioned at the insulating component end face side of the first component and the Part II of the radial outside of Part I, and the second recess extends to the radial outside of the Part I of the first component.

In the manner, the Part I except will forming the Part II needed for the second recess in the first component can be configured in the radially inner side of Part II.Thus, when being contained in by the rotating machine sets of the stator with the manner on compressor etc., can prevent the outer peripheral face of the Part I of the first component of insulating component from interferenceing with other parts.In addition, can guarantee at the outer circumferential side of the Part I of the first component of insulating component the cooling channel that is communicated with diametrically.

Usually, form the groove of opening between the tooth leading section being formed two teeth making this adjacent by two adjacent teeth in the yoke of stator core and circumference, insert in groove by slot liner component.Now, in order to improve the insulating properties between stator winding and stator core, slot liner component is to be inserted in groove from the mode that stator core end face is outstanding in the axial direction.

Like this, to be inserted in the state in groove in the mode of giving prominence to from stator core end face at slot liner component under, when insulating component being configured in the axial both sides of stator core, can be stopped by the end of the slot liner component given prominence to from stator core end face.

So, in other other different modes, the first component be arranged in radially inner side (with groove side in opposite directions) and the part of insulating component end face side and connecting elements be positioned at circumferential both sides (with groove side in opposite directions) and at least one party of the part of insulating component end face side is formed as inclined plane.The inclined plane being positioned at radially inner side (with groove side in opposite directions) of the first component and the inclined plane being positioned at circumferential both sides (with groove side in opposite directions) of connecting elements are set as, when being configured on stator core end face by insulating component, the end of the slot liner component given prominence to from stator core end face is in the axial direction mobile to the direction (non-interfering direction) of the operation that can not hinder configuration insulating component.That is, the inclined plane being positioned at radially inner side of the first component is formed as, and the distance of the center line of insulating component end face lateral extent stator is greater than the distance of the center line of a lateral extent stator contrary with insulating component end face side.By the inclined plane being positioned at radially inner side of this first component, make moving to radially inner side (center position of groove) with yoke part in opposite directions the end of the slot liner component given prominence to from stator core end face in the axial direction.In addition, the inclined plane being positioned at circumferential both sides of connecting elements is formed as, and the interval of insulating component end face side between connecting elements circumference both sides is less than the interval of the side contrary with insulating component end face side between connecting elements circumference both sides.By the inclined plane being positioned at circumferential both sides of this connecting elements, the direction (center position of groove) that the tooth base portion of the end of the slot liner component given prominence to from stator core end face in the axial direction and adjacent tooth part is in opposite directions expanded to the interval of the circumference between two parts is mobile.

In addition, the structure of the manner can also be applied to being configured in the situation in slot liner component insertion groove by insulating component under the state on stator core end face.In addition, not only can by connecting elements be positioned at circumferential both sides and the part of insulating component end face side is formed as inclined plane, can also by second component be positioned at circumferential both sides and the part of insulating component end face side is formed as inclined plane.

In the manner, the state being inserted with slot liner component in the mode of giving prominence to from stator core end face in the axial direction in the groove of stator core, can easily insulating component be configured on stator core (stator core end face).In addition, insulating component is being configured under the state on stator core (stator core end face) on the contrary, can in the groove of stator core easily insertion groove insulating component.

In other other different modes, use in the formingspace from the part corresponding with the protuberance of insulating component to finishing die and fill the insulating component be integrally formed for the formation of the material of insulating component.As the material forming insulating component, typically use resin.By being partially filled the materials such as resin from the corresponding with the protuberance of insulating component of formingspace, improving the mobility of the materials such as resin, improving the quality of insulating component.

In the manner, the stator of the insulating component with high-quality can be obtained.

Invention in addition relates to the stator of whirler.

Stator of the present invention has stator core, insulating component, stator winding.Stator core has stator core end face in axial both sides.Insulating component is configured in the axial both sides of stator core, has insulating component end face with stator core end face position in opposite directions.

When observing cross section perpendicular to axial direction, stator core has the yoke circumferentially extended and the multiple teeth extended from yoke to radially inner side.Each tooth has tooth base portion and tooth leading section, and described tooth base portion radially extends from yoke, and described tooth leading section is arranged on the front of tooth base portion, circumferentially extends, and is formed with tooth front end face in the side contrary with yoke side.The groove of opening is formed between the tooth leading section being formed two teeth making this adjacent by two teeth adjacent in yoke and circumference.To be inserted with slot liner component from the mode that stator core end face is outstanding in the axial direction in groove.

When observing cross section perpendicular to axial direction, insulating component have the first component circumferentially extended, the radially inner side being circumferentially configured in the first component at spaced intervals and the multiple second components circumferentially extended, for connecting multiple connecting elementss of the first component and each second component.Insulating component is configured on stator core end face with the yoke of stator core, tooth leading section and tooth base portion mode in opposite directions respectively with the first component, second component and connecting elements.Insulating component is typically integrally formed by the resin with insulation characterisitic.In addition, " the first component, second component and connecting elements respectively with the yoke of stator core, tooth leading section and tooth base portion in opposite directions " this structure comprise " the first component, second component and connecting elements respectively with the yoke of stator core, tooth leading section and tooth base portion at least partially in opposite directions " structure.

Stator winding is wound on stator core and insulating component.As the winding mode of stator winding, typically adopt the concentrated winding method on the tooth base portion of the tooth being directly wound on stator core and the connecting elements of insulating component.

Further, in the present invention, the first component be arranged in radially inner side (with groove side in opposite directions) and the part of insulating component end face side and connecting elements be positioned at circumferential both sides and at least one party of the part of insulating component end face side is formed as inclined plane.The inclined plane being positioned at radially inner side of the first component and the inclined plane being positioned at circumferential both sides of connecting elements are set as, when being configured on stator core end face by insulating component, the end of the slot liner component given prominence to from stator core end face is in the axial direction mobile to the direction (non-interfering direction) of the operation that can not hinder configuration insulating component.That is, the inclined plane being positioned at radially inner side of the first component is formed as, and the distance of the center line of insulating component end face lateral extent stator is greater than the distance of the center line of a lateral extent stator contrary with insulating component end face side.By the inclined plane being positioned at radially inner side of this first component, make moving to radially inner side (center position of groove) with yoke part in opposite directions the end of the slot liner component given prominence to from stator core end face in the axial direction.In addition, the inclined plane being positioned at circumferential both sides of connecting elements is formed as, and the interval of insulating component end face side between the circumferential both sides of connecting elements is less than the interval of the side contrary with insulating component end face side between the circumferential both sides of connecting elements.By the inclined plane being positioned at circumferential both sides of this connecting elements, the direction (center position of groove) that the tooth base portion of the end of the slot liner component given prominence to from stator core end face in the axial direction and adjacent tooth part is in opposite directions expanded to the circumferential interval between two parts is mobile.In addition, structure of the present invention can also be applied to being configured in the situation in slot liner component insertion groove by insulating component under the state on stator core end face.

In the present invention, insert by the state of slot liner component in the mode of giving prominence to from stator core end face in the axial direction in the groove of stator core, can easily insulating component be configured on stator core (stator core end face).In addition, on the contrary, being configured in by insulating component under the state on stator core end face, easily slot liner component can be inserted in the groove of stator core.

Other different inventions relate to whirler.Whirler of the present invention has above-mentioned any one stator, rotor, and rotor is supported for and can rotates, and and has space between the tooth front end face of stator.

In whirler of the present invention, insulating component can be configured to be close to stator core.

Other different inventions in addition relate to the insulating component manufacture method manufacturing and have the insulating component of the protuberance of above-mentioned formation positioning unit.Insulating component manufacture method of the present invention is integrally formed insulating component by the formingspace that the material for the formation of insulating component is filled in finishing die.Now, from the part in opposite directions of the protuberance with insulating component to packing material in formingspace.Typically resin is adopted as the material forming insulating component.

In insulating component manufacture method of the present invention, because from the part in opposite directions of the protuberance with insulating component to potting resin in formingspace, so improve the mobility of resin in formingspace, the insulating component of high-quality can be manufactured.

In stator of the present invention, stator core end face is formed from the first recessed recess of stator core end face, insulating component end face is formed first protuberance that can be entrenched in the first recess that leading section is given prominence to from insulating component end face, and around protuberance, is formed with the second recess.Thereby, it is possible to prevent the boundary member due to the first recess and stator core end face be connected to the root of protuberance and between insulating component end face and stator core end face, produce gap, thus insulating component can be configured to be close to stator core.

In addition, whirler of the present invention has the effect identical with stator of the present invention.

In addition, the insulating component manufacture method of the application of the invention, can improve the quality of the insulating component forming stator.

Accompanying drawing explanation

Fig. 1 is the stereogram of the stator of the first execution mode.

Fig. 2 is the partial enlarged drawing of the insulating component of the stator of formation first execution mode.

Fig. 3 is the III-III cutaway view of Fig. 2.

Fig. 4 is the figure observed from the arrow IV direction of Fig. 2.

Fig. 5 is the partial enlarged drawing of the insulating component of the stator of formation second execution mode.

Fig. 6 is the VI-VI cutaway view of Fig. 5.

Fig. 7 is the figure observed from the arrow VII direction of Fig. 5.

Fig. 8 A, 8B illustrate that the part corresponding with connecting elements on insulating component end face is formed with the figure (the VIII-VIII cutaway view of Fig. 5) of the effect of the insulating component of recess.

Fig. 9 A, 9B illustrate that the part corresponding with connecting elements on insulating component end face does not form the figure of the effect of the insulating component of recess.

Figure 10 is the partial enlarged drawing of the insulating component of the stator of formation the 3rd execution mode.

Figure 11 is the XI-XI cutaway view of Figure 10.

Figure 12 is the figure observed from the arrow XII direction of Figure 10.

Figure 13 is the partial enlarged drawing of the insulating component of the stator of formation the 4th execution mode.

Figure 14 is the XIV-XIV cutaway view of Figure 13.

Figure 15 is the figure observed from the arrow XV direction of Figure 13.

Figure 16 is the partial enlarged drawing of the insulating component of the stator of formation the 5th execution mode.

Figure 17 is the XVII-XVII cutaway view of Figure 16.

Figure 18 is the figure observed from the arrow XVIII direction of Figure 16.

Figure 19 is the partial enlarged drawing of the insulating component of the stator of formation the 6th execution mode.

Figure 20 is the XX-XX cutaway view of Figure 19.

Figure 21 is the figure observed from the arrow XXI direction of Figure 19.

Figure 22 is the partial enlarged drawing of the insulating component of the stator of formation the 7th execution mode.

Figure 23 is the XXIII-XXIII cutaway view of Figure 22.

Figure 24 is the figure observed from the arrow XXIV direction of Figure 22.

Figure 25 is the partial enlarged drawing of the insulating component of the stator of formation the 8th execution mode.

Figure 26 is the figure observed from the arrow XXVI direction of Figure 25.

Figure 27 is the XXVII-XXVII cutaway view of Figure 25.

Figure 28 A, Figure 28 B illustrate figure insulating component being configured in the action on stator core in the stator of the 8th execution mode.

Figure 29 is the figure of the summary of the execution mode that insulating component manufacture method is described.

Figure 30 is the figure of the execution mode that insulating component manufacture method is described.

Embodiment

Below, with reference to accompanying drawing, embodiments of the present invention are described.

In each execution mode described below, illustrate have stator, the radially inner side of stator be supported for can relative to stator rotate rotor in rotatable whirler.Stator is configured to, and groove number is the stator of 3 phase 6 poles of 9.In addition, as the winding mode of stator winding, adopt the concentrated winding method be directly wound on by stator winding on tooth.Certainly, each structure described below can be applied to stator, the whirler of various structure.

In addition, in this manual, " axis " represents under rotor is supported for the state that can rotate relative to stator, the direction of the rotation centerline (hereinafter referred to " center line of stator ") of rotor.In addition, " circumference " represents when observing cross section perpendicular to axial direction, the circumferencial direction centered by the center line of stator.In addition, " radial direction " represents when observing cross section perpendicular to axial direction, perpendicular to the direction of the center line of stator.

Fig. 1 ~ 4 show the stator 10 of the first execution mode of the present invention.In addition, Fig. 1 is the stereogram of stator 10.In addition, Fig. 2 is the partial enlarged drawing of the insulating component 120 of stator 10, and Fig. 3 is the III-III cutaway view of Fig. 2, and Fig. 4 is the figure observed from the arrow IV direction of Fig. 2.

Not shown rotor in FIG, rotor adopts known rotor.Such as, the rotor that there is magnet containing hole and be contained in the permanent magnet in magnet containing hole is adopted.Rotor is supported for and can rotates relative to stator 10.Now, rotor rotates centered by the center line P of stator.Whirler is formed by stator 10 and rotor.

Stator 10 have stator core 100, slot liner component 110, insulating component 120,130, stator winding (omitting diagram) etc.

Stator core 100 is by axially stacked for the laminal electromagnetic steel plate die-cut by process for stamping etc., and by Automatic-clamping etc. and integration.

Stator core 100 has: yoke 101, when observing the cross section of (being parallel to the direction of the center line P of stator) perpendicular to axial direction, circumferentially extends; Multiple tooth 102, when observing the cross section of (being parallel to the direction of the center line P of stator) perpendicular to axial direction, extends from yoke 101 to radially inner side.Tooth 102 has: tooth base portion 102a, and it radially extends from yoke 101; Tooth leading section 102b, it is arranged on the front of tooth base portion 102a, circumferentially extends, and is formed with tooth front end face 102c in the side (radially inner side) contrary with yoke 101 side.Tooth front end face 102c is formed as the circular shape centered by the center line P of stator.Further, rotor (omitting diagram), to have the mode in space between the outer peripheral face and tooth front end face 102c of rotor, can configure (support) in the rotor accommodation space 100a formed by tooth front end face 102c rotatably.

In addition, groove 100b is formed by two teeth 102 adjacent in the circumference in yoke 101 and multiple tooth 102.Groove 100b has channel opening portion between the tooth leading section 102b of adjacent two teeth 102.

In addition, stator core 100 has stator core end face 104a, 104b in axial both sides.In addition, stator core end face 104a, 104b are formed with recess 105(explained later).

Slot liner component 110 is inserted in groove 100b.Slot liner component 110 is such as formed as sheet (film-form) by PETG (PET), PEN (PEN) etc.In addition, slot liner component 110 is to be inserted in groove 100b from the mode that stator core end face 104a, 104b are outstanding in the axial direction.Thereby, it is possible to prevent at stator core end face 104a(104b) with insulating component 120(130) boundary produce the phenomenon of defective insulation.

Insulating component 120,130 is such as formed by polyphenylene sulfide (PPS), polybutylene terephthalate (PBT) (PBT), liquid crystal polymer (LCP) etc.In addition, in the present embodiment, the structure of insulating component 120,130 is identical.

Insulating component 120(130) have: exterior wall members 121(131), when observing cross section perpendicular to axial direction, circumferentially; Multiple interior wall members 122(132), when observing cross section perpendicular to axial direction, be configured in exterior wall members 121(131 one another along circumferentially spaced compartment of terrain) radially inner side, and circumferentially to extend; Multiple connecting elements 123(133), for connecting exterior wall members 121(131) and each interior wall members 122(132).In addition, exterior wall members 121(131) and interior wall members 122(132) axially extend.The space of the end for accommodating stator winding is formed by exterior wall members 121, interior wall members 122 and connecting elements 123.

In addition, insulating component 120(130) in side (opposite side) axially, there is insulating component end face 124(134).Insulating component end face 124(134) by exterior wall members 121(131) end face, the interior wall members 122(132 of side (opposite side) axially) end face, the connecting elements 123(133 of side (opposite side) axially) the end face of side (opposite side) axially formed.

In addition, by interior wall members 122(132) the space 120a(130a that formed of the inner peripheral surface 122c of radially inner side) be configured in the rotor accommodation space 100a position in opposite directions with stator core 100.In addition, by exterior wall members 121(131), adjacent in circumference two interior wall members 122(132) and connecting elements 123(133) the space 120b(130b that formed) be configured in the groove 100b position in opposite directions with stator core 100.

Insulating component 120(130) be configured in the axial both sides of stator core 100.Specifically, with insulating component 120(130) exterior wall members 121(131), interior wall members 122(132) and connecting elements 123(133) be configured in the mode with the yoke 101 of stator core 100, the tooth leading section 102b of tooth 102 and tooth base portion 102a position in opposite directions respectively, by insulating component end face 124(134) be configured in stator core end face 104a(104b) on.Exterior wall members 121(131), interior wall members 122(132) and connecting elements 123(133) as long as respectively with yoke 101, tooth leading section 102b and tooth base portion 102a at least partially in opposite directions.

In addition, at insulating component end face 124(134) be configured in stator core end face 104a(104b) on state under, interior wall members 122(132) inner peripheral surface 122c be not projected into the rotor-side (radially inner side) of the tooth front end face 102c of tooth 102.In addition, exterior wall members 121(131) the outer peripheral face 121c(131c of radial outside) be not projected into the side (radial outside) (with reference to Figure 27) contrary with rotor-side of the outer peripheral face 101c of yoke 101.

The tooth front end face 102c of tooth 102 corresponds to " inner peripheral surface of stator core 100 ", the outer peripheral face 101c of yoke 101 corresponds to " outer peripheral face of stator core 100 ", the inner peripheral surface 122c of interior wall members 122 corresponds to " inner peripheral surface of insulating component 120 ", exterior wall members 121(131) outer peripheral face 121c(131c) correspond to " insulating component 120(130) outer peripheral face ".

Further, at insulating component 120(130) be configured in the state of axial both sides of stator core 100 under, winding stator winding (omit diagram).In the stator 10 of present embodiment, stator winding is directly wound on tooth base portion 102a and the insulating component 120(130 of the tooth 102 of stator core 100 by concentrating winding method) connecting elements 123(133) on.

In the present embodiment, insulating component 120(130) exterior wall members 121(131) corresponding to " the first component " of the present invention, interior wall members 122(132) corresponding to " second component " of the present invention, connecting elements 123(133) corresponding to " connecting elements " of the present invention.

In addition, be provided with for by insulating component 120(130) be positioned at the exterior wall members 121(131 of stator core 100 (with insulating component 120(130)), interior wall members 122(132) and connecting elements 123(133) be configured in and locate with the mode of the yoke 101 of stator core 100, tooth leading section 102b and tooth base portion 102a position in opposite directions) positioning unit.In the stator 10 of present embodiment, positioning unit is by the stator core end face 104a(104b being formed in stator core 100) on recess 105 and be formed in insulating component 120(130) insulating component end face 124(134) the upper and protuberance 125(135 that can be entrenched in recess 105) form.Recess 105 and protuberance 125(135) shape can be set as, can by protuberance 125(135) be entrenched in various shapes in recess 105.In addition, by recess 105 and protuberance 125(135) quantity of positioning unit that forms and forming position also can suitably set.

Because identical with the structure for insulating component 130 being positioned at the positioning unit (105 and 135) on stator core 100 for the positioning unit (105 and 125) insulating component 120 is positioned on stator core 100, so below, with reference to Fig. 2 ~ 4, the positioning unit being used for being positioned at by insulating component 120 on stator core 100 is described.

In addition, recess 105 is preferably formed in recess 105 and can not hinders the position flowing through magnetic flux in the tooth base portion 102a of the tooth 102 of stator core 100.

Such as, at the width of tooth base portion 102a close to (when surplus) when width needed for the magnetic flux density that will obtain expectation, preferably the major part (comprising all) of recess 105 is formed in stator core end face 104a(104b) the part corresponding with yoke 101 on." stator core end face 104a(104b) the part corresponding with yoke 101 " represents: " at stator core end face 104a(104b) on, side (inner peripheral surface of radially inner side and the outer peripheral face of radial outside) and the stator core end face 104a(104b of the radial both sides of yoke 101) region that surrounds of the line that intersects ".

In addition, when the width of tooth base portion 102a is far longer than the width needed for the magnetic flux density that will obtain expectation (when there is surplus), recess 105 can be made to stride across and to be formed in stator core end face 104a(104b) the part corresponding with yoke 101 and the part corresponding with tooth base portion 102a on.Or, the major part of recess 105 (comprise all) can be made to be formed in stator core end face 104a(104b) the part corresponding with tooth base portion 102a on." stator core end face 104a(104b) the part corresponding with tooth base portion 102a " represents: " at stator core end face 104a(104b) on, the side of the circumferential both sides of tooth base portion 102a (week left surface to the left and week right flank to the right), the inner peripheral surface of radially inner side of yoke 101 and the outer peripheral face of the radial outside of tooth leading section 102b and stator core end face 104a(104b) region that surrounds of the line that intersects ".

When a part for recess 105 or major part (comprising all) are formed in stator core end face 104a(104b) the part corresponding with tooth base portion 102a on, can by insulating component 120(130) recess 126(136) a part or major part (comprising all) be formed in insulating component end face 124(134) with connecting elements 123(133) in corresponding part, after describe in detail.In this case, because exterior wall members 121(131 can be made) outer peripheral face 121c(131c) the minimum diameter of circle of size (surround outer peripheral face 121c(131c)) little, so can at exterior wall members 121(131) outer circumferential side configuring external equipment.

In the stator 10 of present embodiment, protuberance 125 is formed as its leading section and gives prominence to from insulating component end face 124 in the axial direction.In addition, the major part of protuberance 125 is formed in the part corresponding with exterior wall members 121 of insulating component end face 124, and remainder is formed in the part corresponding with connecting elements 123 of insulating component end face 124." part corresponding with exterior wall members 121 of insulating component end face 124 " represents: " on insulating component end face 124, the region that the line that side (inner peripheral surface of radially inner side and the outer peripheral face of radial outside) and the insulating component end face 124 of the radial both sides of exterior wall members 121 intersect surrounds ".In addition, " part corresponding with connecting elements 123 of insulating component end face 124 " represents: " on insulating component end face 124, the region that the line that the side of the circumferential both sides of connecting elements 123 (week left surface to the left and week right flank to the right), the inner peripheral surface of radially inner side of exterior wall members 121 and the outer peripheral face of the radial outside of interior wall members 122 and insulating component end face 124 intersect surrounds ".

At this, when insulating component 120 integrally formed with resin use finishing die, the root 125a being formed in the protuberance 125 on insulating component end face 124 is formed as curved surface (hollows).On the other hand, when forming stator core 100 by stacked multiple electromagnetic steel plates, the recess 105 be formed on stator core end face 104a is formed as sharp-pointed horn shape (edge) with the boundary portion of stator core end face 104a.

If as existing stator, protuberance is directly given prominence to from insulating component end face, then the edge (boundary portion of recess 105 and stator core end face 104a) of recess 105 is connected on the root (curved surface) of the protuberance 125 be formed on insulating component end face 124, produces gap (rocking) between insulating component end face 124 and stator core end face 104a.That is, because the edge of recess 105 and the root of protuberance 125 abut against, thus gap is produced between insulating component end face 124 and stator core end face 104a.If produce gap between insulating component end face 124 and stator core end face 104a, then insulating component 120 may come off from stator core 100.In addition, the take-up force being wound on the stator winding on the tooth base portion 102a of stator core 100 and the connecting elements 123 of insulating component 120 likely makes insulating component 120 damaged.In addition, when inserting protuberance 125 in recess 105, the edge of recess 105 can cut protuberance 125, and produces resin-lint.If this resin-lint flows out to the outside of motor, then can become the reason causing external equipment to occur plugging fault.Such as, when the whirler of the stator with present embodiment is applied to the compressor such as air conditioner, refrigerator, circulating device is likely made to block and break down.

In the stator 10 of present embodiment, around protuberance 125, be formed with recess 126 in the mode recessed from insulating component end face 124.Namely, be formed with recess 126 at insulating component end face 124, and the major part of this recess 126 is configured in the part corresponding with exterior wall members 121, and, in recess 126, be formed with protuberance 125, and the major part of this protuberance 125 is configured in the part corresponding with exterior wall members 121.The shape of recess 126 is set as following suitable shape, namely, can prevent because the edge of recess 105 and the root 125a of protuberance 125 abut against and produce gap between insulating component end face 124 and stator core end face 104a, in addition, can the accommodating edge because of recess 105 and protuberance 125 resin-lint that abuts against and produce.

With regard to the recess 123a be formed on the side contrary with insulating component end face 124 side of connecting elements 123, when insulating component 120 integrally formed by resin, the mobility of resin improved and improves the quality of insulating component 120, in addition, reducing the use amount of resin.Recess 123a also can omit.

In the present embodiment, be formed in stator core end face 104a(104b) on recess 105 correspond to " the first recess " of the present invention, be formed in insulating component end face 124(134) on protuberance 125(135) corresponding to " protuberance " of the present invention, recess 126(136) corresponding to " the second recess " of the present invention.

In the stator of the first execution mode, insulating component end face is formed the protuberance forming positioning unit, and around protuberance, being formed with the second recess, thus can preventing the edge of the first recess and the root of protuberance because forming positioning unit from abutting against and produce gap between insulating component end face and stator core end face.That is, insulating component end face can be made to be close to stator core end face.Thereby, it is possible to prevent insulating component from coming off from stator core (stator core end face).In addition, can prevent the take-up force of stator winding from making insulating component damaged.And, because can the resin-lint produced because protuberance is reamed by the edge of the first recess is contained in the second recess 126, so can prevent resin-lint from flowing out to the outside of stator, thus can prevent because flowing out to outside resin-lint damage external equipment.

In addition, in the stator of the first execution mode, the major part of protuberance is formed in the part corresponding with the first component of insulating component end face, thus can will be able to the major part of the first recess of fitting projection be formed in the part corresponding with yoke of stator core end face.Thereby, it is possible to prevent the first recess from hindering flow through magnetic flux at the tooth base portion place of stator core, the efficiency of the whirler of the stator with the first execution mode can be improved.

The structure of present embodiment, is applicable to the close situation (not having the situation of surplus) that will obtain the width needed for magnetic flux density of expectation of width of the tooth base portion of the tooth of stator core.

Then, the stator of other execution modes is described.The stator of other execution modes described below, the position and the shape that are only formed in the protuberance on insulating component end face and recess are different from the stator of the first execution mode, thus the protuberance be formed on insulating component and recess are only described.In addition, in the stator of other execution modes described below, the recess corresponding with the recess 123a shown in Fig. 2 is not formed.In addition, the structural elements of the Reference numeral that mark in each structural elements of other execution modes numeral only on hundred is different from the Reference numeral used in the first execution mode is the component identical with the structural elements of the first execution mode.

Fig. 5 ~ 7 show the insulating component 220 used in the stator of the second execution mode.In addition, Fig. 5 is the partial enlarged drawing of insulating component 220, and Fig. 6 is the VI-VI cutaway view of Fig. 5, and Fig. 7 is the figure observed from the arrow VII direction of Fig. 5.

In the stator of the second execution mode, protuberance 225 is identical with the first execution mode, major part is configured in the part corresponding with exterior wall members 221 of insulating component end face 224, and remainder is configured in the part corresponding with connecting elements 223 of insulating component end face 224.In addition, the recess 226 around protuberance 225 stride across be formed in insulating component end face 224 the part corresponding with exterior wall members 221 and the part corresponding with connecting elements 223 on.Namely, on insulating component end face 224, to be formed with recess 226 across the part corresponding with exterior wall members 221 and the mode of not sealing corresponding with connecting elements 223, and be formed with protuberance 225 in recess 226, the major part of described protuberance 225 is configured in the part corresponding with exterior wall members 221.As long as recess 226 stride across the part corresponding with exterior wall members 221 being formed in insulating component end face 224 at least partially and the part corresponding with connecting elements 223 upper at least partially.

At this, when by stacked for the electromagnetic steel plate die-cut by process for stamping etc. form stator core, the close contact of the end (week left end to the left and week right-hand end to the right) of the circumferential both sides of the tooth base portion of stator core may be destroyed because of overlap, turned-down edge etc.In this case, as the stator of the second execution mode, the part corresponding with connecting elements 223 on insulating component end face 224 is formed with recess 226, then can prevents the situation that the close contact of the end of the circumferential both sides of the tooth base portion of the stator core caused due to overlap, turned-down edge etc. reduces.

This situation is described with reference to Fig. 8 A, 8B and Fig. 9 A, 9B.In addition, Fig. 8 A is the cutaway view of the circumference along tooth base portion 102a when employing the insulating component 220 of the second execution mode, and Fig. 8 B is the partial enlarged drawing in the A portion in Fig. 8 A.In addition, Fig. 9 A is the use of the cutaway view of the circumference along tooth base portion 102a when the part corresponding with connecting elements of insulating component end face does not form the insulating component of recess, and Fig. 9 B is the partial enlarged drawing in the B portion in Fig. 9 A.

As shown in Figure 9 B, the electromagnetic steel plate that is die-cut into by process for stamping etc. is the stacked and tooth base portion 102a of stator core 100 that forms, produces overlap, turned-down edge etc. at end (week the left end to the left and week right-hand end to the right) H of circumferential both sides.Now, the part corresponding with connecting elements 1023 of insulating component end face does not form recess, as shown in Figure 9 A, the part corresponding with connecting elements 1023 of insulating component end face abuts against at central portion circumferentially and tooth base portion 102a.Therefore, owing to being formed in the overlap, turned-down edge etc. on the end H of the circumferential both sides of tooth base portion 102a, the close contact at the H place, end of the circumferential both sides of tooth base portion 102a may being destroyed, and the rigidity of stator core 100 reduced, produce sound, vibration.

To this, the part corresponding with connecting elements 223 using insulating component end face 224 is formed with insulating component 220 of the second execution mode of recess 226, as shown in Figure 8 A, the part corresponding with connecting elements 223 of insulating component end face 224, at sidewall 223a and the 223b place of the circumferential both sides of formation recess 226, namely at the H place, end of the circumferential both sides of tooth base portion 102a, abut against with tooth ends 102a.Thus, to H place, the end applying pressing force axially of the circumferential both sides of tooth base portion 102a, can prevent because die-cut electromagnetic steel plate makes to produce gap at the H place, end of the circumferential both sides of tooth base portion 102a between electromagnetic steel plate, thus improve the rigidity of stator core 100, the generation of sound-inhibiting and vibration.

The stator of the second execution mode, is formed with protuberance at insulating component end face, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

Further, the second recess stride across be formed in insulating component end face the part corresponding with the first component and the part corresponding with connecting elements on, when being integrally formed insulating component by materials such as resins, the mobility of material can be improved.

In addition, the close contact of the end of the circumferential both sides of the tooth base portion of stator core can be suppressed to reduce and improve the rigidity of stator core, and suppressing to produce sound and vibration.In addition, the thickness (radial thickness of exterior wall members and interior wall members, the axial width of connecting elements) of insulating component can being made roughly even, can preventing when being integrally formed by materials such as resins, insulating component generation warpage, distortion.In addition, the use amount of the material formed required for insulating component can be reduced.

Figure 10 ~ Figure 12 shows the insulating component 320 used in the stator of the 3rd execution mode.In addition, Figure 10 is the partial enlarged drawing of insulating component 320, and Figure 11 is the XI-XI cutaway view of Figure 10, and Figure 12 is the figure observed from the arrow XII direction of Figure 10.

In the stator of the 3rd execution mode, the exterior wall members 321 of insulating component 320 is made up of Part I 321a and Part II 321b, and Part II 321b is configured in insulating component end face 324 side of exterior wall members 321 and is configured in the radial outside of Part I 321a.In addition, in the present embodiment, exterior wall members 321 be configured in stator core 100 with yoke 101 position in opposite directions.

In the present embodiment, protuberance 325 stride across be formed in insulating component end face 324 the part corresponding with the Part I 321a of exterior wall members 321 and the part corresponding with Part II 321b on.That is, the major part of protuberance 325 is formed in the part corresponding with exterior wall members 321 of insulating component end face 324.In addition, recess 326 around protuberance 325 stride across be formed in insulating component end face 324 the part corresponding with the Part I 321a of exterior wall members 321 and the part corresponding with connecting elements 323 on, and be formed as the radial outside (being formed as across in the part corresponding with Part II 321b and the part corresponding with connecting elements 323) of the Part I 321a extending to exterior wall members 321.Namely, insulating component end face 324 is formed recess 326, described recess 326 is across (across in the part corresponding with Part II 321b and the part corresponding with connecting elements 323) in the corresponding part of the radial outside of the Part I 321a with exterior wall members 321 and the part corresponding with connecting elements 323, and be formed with protuberance 325 in recess 326, the major part of described protuberance 325 is configured to across in the corresponding part of the Part I 321a with exterior wall members 321 and the part corresponding with Part II 321b." part corresponding with Part I 321a of insulating component end face 324 " represents: " on insulating component end face 324, the region by the line that the side of the radial both sides of Part I 321a (inner peripheral surface of radially inner side and the outer peripheral face of radial outside) and insulating component end face 324 intersect surrounds "." part corresponding with Part II 321b of insulating component end face 324 " represents: " the removing the part after the part corresponding with Part I from the part corresponding with exterior wall members of insulating component end face 324 ".

The Part I 321a of exterior wall members 321 is configured in the radially inner side of Part II 321b, thus can at the outer circumferential side of Part I 321a (space between the outer peripheral face of Part I 321a and the face making the outer peripheral face 101c of stator core 100 axially extend) configuring external equipment.Such as, cooling channel can be guaranteed at the outer circumferential side of Part I 321a.Or, can prevent the outer peripheral face of Part I 321a from interferenceing with external equipment.

The stator of the 3rd execution mode, insulating component end face is formed with protuberance, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

Further, the second recess with in the part corresponding with the first component and the part corresponding with connecting elements of insulating component end face, so have the effect identical with the second execution mode.

In addition, the Part I of the first component is configured in the radially inner side of Part II, thus can at the outer circumferential side configuring external equipment of Part I, or, prevent the outer peripheral face of Part I from interferenceing with external equipment.

The insulating component 420 used in the stator of the 4th execution mode has been shown in Figure 13 ~ Figure 15.In addition, Figure 13 is the partial enlarged drawing of insulating component 420, and Figure 14 is the XIV-XIV cutaway view of Figure 13, and Figure 15 is the figure observed from the arrow XV direction of Figure 13.

The stator of the 4th execution mode is formed except intercommunicating pore 428 except the recess (the second recess) 426 at insulating component 420, and structure is identical with the stator of the 3rd execution mode.Intercommunicating pore 428 is formed in the part corresponding with connecting elements 423 in recess 426, and is communicated with connecting elements 423 in the axial direction.As long as intercommunicating pore 428 be communicated with connecting elements 423 at least partially.Namely, insulating component end face 424 is formed recess 426, described recess 426 is configured to across in the corresponding part of the radial outside of the Part I 421a with exterior wall members 421 and the part corresponding with connecting elements 423 (across the part corresponding with Part II 421b and the part corresponding with connecting elements 423), protuberance 425 is formed in recess 426, the major part of described protuberance 425 is configured to across in the corresponding part of the Part I 421a with exterior wall members 421 and the part corresponding with Part II 421b, and in the part corresponding with connecting elements 423, be formed with intercommunicating pore 428.

When the whirler of the stator by having present embodiment is used as the drive motor of compressor, refrigerant, refrigerator wet goods medium flow vertically via the intercommunicating pore 428 be formed on the second recess 426.Thereby, it is possible to effectively cool stator winding, stator core 100 etc.

The stator of the 4th execution mode is formed with protuberance at insulating component end face, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

In addition, second recess strides across and is formed in the part corresponding with the Part II of the first component on insulating component end face and the part corresponding with connecting elements (across the part corresponding with the first component and the part corresponding with connecting elements), thus has the effect identical with the stator of the 3rd execution mode.

In addition, the Part I of the first component is configured in the radially inner side of Part II, thus has the effect identical with the stator of the 3rd execution mode.

In addition, because be formed at the intercommunicating pore being axially communicated with connecting elements at the second recess, thus refrigerant can be made, refrigerator wet goods medium axially flows via intercommunicating pore, effectively can cool stator winding, stator core etc.

Figure 16 ~ Figure 18 shows the insulating component 520 used in the stator of the 5th execution mode.In addition, Figure 16 is the partial enlarged drawing of insulating component 520, and Figure 17 is the XVII-XVII cutaway view of Figure 16, and Figure 18 is the figure observed from the arrow XVIII direction of Figure 16.

In the stator of the 5th execution mode, identical with the insulating component 320 of the 3rd execution mode, exterior wall members 521 comprises Part I 521a and Part II 521b, and described Part II 521b is configured in insulating component end face 524 side of exterior wall members 521 and is configured in the radial outside of Part I 521a.

Protuberance 525 stride across be formed in insulating component end face 524 the part corresponding with the Part I 521a of exterior wall members 521 and the part corresponding with Part II 521b on.That is, the major part of protuberance 525 is formed in the part corresponding with exterior wall members 521 of insulating component end face 524.In addition, the major part of the recess 526 around protuberance 525 strides across and is formed in the part corresponding with the Part I 521a of exterior wall members 521 and the part corresponding with Part II 521b.And, the part corresponding with connecting elements 523 is formed from the recessed recess 527 of insulating component end face 524.Namely, insulating component end face 524 is formed recess 526, the major part of this recess 526 strides across and is formed in the part corresponding with the Part I 521a of exterior wall members 521 and the part corresponding with Part II 521b, and recess 527 is formed in the part corresponding with connecting elements 523, and, in recess 526, be formed with protuberance 525, the major part of described protuberance 525 strides across and is formed in the part corresponding with the Part I 521a of exterior wall members 521 and the part corresponding with Part II 521b.

In the present embodiment, the protuberance 525 be formed on insulating component end face 524 corresponds to " protuberance " of the present invention, and recess 526 corresponds to " the second recess " of the present invention, and recess 527 corresponds to " the 3rd recess " of the present invention.

The stator of the 5th execution mode is formed with protuberance on insulating component end face, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

In addition, because the 3rd recess is formed in the part corresponding with connecting elements of insulating component end face, so have the effect identical with the second execution mode being formed with recess in the part corresponding with connecting elements of insulating component end face.

In addition, because the Part I of the first component is configured in the radially inner side of Part II, so have the effect identical with the stator of the 3rd execution mode.

In addition, part wall thickness between second recess and the 3rd recess, thus stride across compared with the situation in the part corresponding with the first component being formed in insulating component end face and the part corresponding with connecting elements with the second recess, the intensity of connecting elements can be improved, and suppress to produce sound and vibration.

Figure 19 ~ Figure 21 shows the insulating component 620 used in the stator of the 6th execution mode.In addition, Figure 19 is the partial enlarged drawing of insulating component 620, and Figure 20 is the XX-XX cutaway view of Figure 19, and Figure 21 is the figure observed from the arrow XXI direction of Figure 19.

Protuberance 625 and recess 626 are formed as major part and are configured in the part corresponding with exterior wall members 621 of insulating component end face 624.In addition, the part corresponding with connecting elements 623 of insulating component end face 624 is formed with recess 627, and in recess 627, is formed with the intercommunicating pore 628 being axially communicated with connecting elements 623.Namely, insulating component end face 624 is formed recess 626, the major part of described recess 626 is configured in the part corresponding with exterior wall members 621, and is formed with protuberance 625 in recess 626, and the major part of described protuberance 625 is configured in the part corresponding with exterior wall members 621.And, the part corresponding with connecting elements 623 is formed with recess 627, and in recess 627, is formed with the intercommunicating pore 628 being axially communicated with connecting elements 623.

In the present embodiment, the protuberance 625 be formed on insulating component end face 624 corresponds to " protuberance " of the present invention, recess 626 corresponds to " the second recess " of the present invention, and recess 627 corresponds to " the 3rd recess " of the present invention, and intercommunicating pore 628 corresponds to " intercommunicating pore " of the present invention.

The stator of the 6th execution mode is formed with protuberance on insulating component end face, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

In addition, the part corresponding with connecting elements of insulating component end face is formed with the 3rd recess, thus there is the effect identical with the second execution mode being formed with recess in the part corresponding with connecting elements.

In addition, because be formed with intercommunicating pore, so have the effect identical with the 4th execution mode being formed in the 3rd recess in the part corresponding with connecting elements.

In addition, because the part wall thickness between the second recess and the 3rd recess, so have the effect identical with the 5th execution mode.

Figure 22 ~ Figure 24 shows the insulating component 720 used in the stator of the 7th execution mode.In addition, Figure 22 is the partial enlarged drawing of insulating component 720, and Figure 23 is the XXIII-XXIII cutaway view of Figure 22, and Figure 24 is the figure observed from the arrow XXIV direction of Figure 22.

In the stator of the 7th execution mode, protuberance 725 is formed in the part corresponding with connecting elements 723 of insulating component end face 724.In addition, the recess 726 around protuberance 725 is formed in the part corresponding with connecting elements 723 of insulating component end face 724.Namely, insulating component end face 724 is formed recess 726, the major part of described recess 726 is configured in the part corresponding with connecting elements 723 at (comprising all), and be formed with protuberance 725 in recess 726, the major part of described protuberance 725 is configured in the part corresponding with connecting elements 723 (comprising all).

In the stator of present embodiment, the major part of the recess (the first recess) 105 that protuberance 725 can be fitted together to (comprising all) be formed on stator core end face 104a with on the connecting elements 723 of insulating component 720 position in opposite directions, that is, be formed in the part corresponding with tooth base portion 102a of tooth 102.

The stator of the 7th execution mode is formed with protuberance on insulating component end face, and around protuberance, be formed with the second recess, thus has the effect identical with the stator of the first execution mode.

In addition, because be formed with the second recess in the part corresponding with connecting elements, so have the effect identical with the second execution mode being formed with recess in the part corresponding with connecting elements.And, because the second recess can not be arranged in the part corresponding with the first component, so the size (surrounding the minimum diameter of the circle of the outer peripheral face of the first component) of the outer peripheral face of the first component can be reduced.Thereby, it is possible at the outer circumferential side configuring external equipment of the first component, or, can prevent the outer peripheral face of the first component from interferenceing with external equipment.And the protuberance forming positioning unit is formed in and will reels on the connecting portion of stator winding, so reliably can prevent the skew of insulating component and stator core.

When the width of the tooth base portion of the tooth of stator core is far longer than the width required for the magnetic flux density that will obtain expectation (when there is surplus), preferably use the stator of the 7th execution mode.

But the stator that patent documentation 1 is recorded has above-mentioned stator core (yoke, tooth), insulating component (exterior wall members, interior wall members, multiple connecting elements), stator winding.Further, in the groove formed by two teeth adjacent in yoke and circumference, slot liner component is inserted with in the mode of giving prominence to vertically from stator core end face.

In existing stator, because slot liner component is inserted in groove in the mode outstanding from stator core end face, so when insulating component is configured on stator core end face, the end of the slot liner component given prominence to from stator core end face becomes obstruction, and is not easy to insulating component to be configured on stator core end face.

8th execution mode provides the technology that can be easily configured in by insulating component on stator core (stator core end face) in view of this point.

Figure 25 ~ Figure 28 B shows the insulating component 820 being configured in the axial both sides of stator core 100 used in the stator of the 8th execution mode.In addition, Figure 25 is the partial enlarged drawing of insulating component 820, and Figure 26 is the figure observed from the arrow XXVI direction of Figure 25, and Figure 27 is the XXVII-XXVII cutaway view of Figure 25.In addition, Figure 28 A, Figure 28 B are for illustration of to stator core 100(stator core end face 104a) upper configuration insulating component 820 time action, be the XXVIII-XXVIII cutaway view of Figure 25.

The stator of present embodiment has stator core 100, insulating component 820, stator winding, slot insulators.

As shown in Figure 1, stator core 100 there is yoke 101, from yoke 101 to radially inner side extend multiple tooth 102(tooth base portion 102a, tooth leading section 102b).Insulating component 820 is formed by the resin identical with the insulating component of the first to the 7th execution mode, has the exterior wall members 821, interior wall members 822 and the tooth base portion 823 that are configured in respectively with on the yoke 101 of stator core 100, tooth leading section 102b and tooth base portion 102a position in opposite directions.

Stator core 100 has stator core end face 104a(104b in axial both sides).At stator core end face 104a(104b) on be formed with recess 105, the major part of described recess 105 (comprising all) is configured in the part corresponding with yoke 101.

As shown in Figure 1, slot liner component 110 is inserted in the mode of axially giving prominence to from stator core end face 104a, 104b in the groove 100b that formed by two teeth 102 adjacent in the yoke 101 of stator core 100 and circumference.

Insulating component 820 is at the stator core end face 104a(104b with stator core 100) position in opposite directions has insulating component end face 824.Insulating component end face 824 is formed protuberance 825, and the major part of described protuberance 825 is configured in the part corresponding with exterior wall members 821 (comprising all).In addition, be formed with recess 826 around protuberance 825, the major part of described recess 826 is configured in the part corresponding with exterior wall members 821 (comprising all).And, the part corresponding with connecting elements 823 is formed with recess 827.Protuberance 825 is formed as being embedded in the shape in recess 105.

By the protuberance 825 be formed on insulating component end face 824 and the recess 105 be formed on stator core end face 104a, be configured for insulating component 820(insulating component end face 824) be positioned at stator core 100(stator core end face 104a) on positioning unit.Namely, by the positioning unit be made up of protuberance 825 and recess 105, the exterior wall members 821 of insulating component 820, interior wall members 822 and connecting elements 823 are arranged, respectively with on the yoke 101 of stator core 100, tooth leading section 102b and tooth base portion 102a position in opposite directions.

Under the state of axial both sides that insulating component 820 is configured in stator core 100, by concentrated winding method, stator winding (diagram is omitted) is directly wound on the tooth base portion 102a of stator core 100 and the connecting elements 823 of insulating component 820.

And, in the present embodiment, on exterior wall members 821, be positioned at radially inner side (central side of groove) and insulating component end face 824(stator core 100) part of side is formed with inclined plane 821A.In addition, on connecting elements 823, be positioned at circumferential both sides and the part of insulating component end face 824 side is being formed with inclined plane 823A.Inclined plane 821A and inclined plane 823A is set as, insulating component 820 being configured in stator core 100(stator core end face 104a) upper time, the end of the slot liner component 110 axially given prominence to from stator core end face 104a is mobile along the direction (non-interfering direction) of the operation that can not hinder configuration insulating component 820.That is, the distance of the center line P of the insulating component end face 824 lateral extent stator of inclined plane 821A is greater than the distance of the center line P of a lateral extent stator contrary with insulating component end face 824 side.As shown in the arrow in Figure 27, made moving to radially inner side (center position of groove) with yoke 101 part in opposite directions the end of the slot liner component 110 axially given prominence to from stator core end face 104a by the inclined plane 821A of the radially inner side of exterior wall members 821.In addition, the interval of the part in insulating component end face 824 side between the circumferential both sides of connecting elements 823 of inclined plane 823A is less than the side part interval the circumferential both sides of connecting elements 823 between contrary with insulating component end face 824 side.As shown in Figure 28 A, 28B, moving in the direction (center position of groove) that the inclined plane 823A of circumferential both sides makes the tooth base portion 102a of the end of the slot liner component 110 axially given prominence to from stator core end face 104a and adjacent tooth 102 part in opposite directions expand to the circumferential interval between two parts by connecting elements 823.

Exterior wall members 821 be arranged in radially inner side and the inclined plane 821C of the side contrary with insulating component end face 824 side is formed to be easy to when being integrally formed insulating component 820 by materials such as resins extract insulating component 820 from finishing die.The distance of the center line P of the insulating component end face 824 lateral extent stator of inclined plane 821C is less than the distance of the center line P of a lateral extent stator contrary with insulating component end face 824 side.In addition, the face 821B between 821A and the 821C of inclined plane of exterior wall members 821, the face 823B being positioned at the side contrary with insulating component end face 824 side of connecting elements 823 are to comprise substantially vertical situation perpendicular to insulating component end face 824() mode extend.

In addition, inclined plane 823A can not only be formed in the circumferential both sides of connecting elements 823 by insulating component end face 824 side, also can be formed in the circumferential both sides of interior wall members 822 by insulating component end face 824 side.

In addition, the length axially of inclined plane 821A, 823A can suitably set.

In the present embodiment, the exterior wall members 821 of insulating component 820 corresponds to " the first component " of the present invention, and interior wall members 822 corresponds to " second component " of the present invention, and connecting elements 823 corresponds to " connecting elements " of the present invention.In addition, the recess 105 be formed on stator core end face 104a, 104b corresponds to " the first recess " of the present invention, the protuberance 825 be formed on insulating component end face 824 corresponds to " protuberance " of the present invention, and recess 826 and 827 corresponds to " the second recess " of the present invention and " the 3rd recess ".In addition, inclined plane 821A corresponds to " being positioned at the inclined plane of the radially inner side of the first component and the insulating component end face side of the first component " of the present invention, and inclined plane 823A corresponds to " being positioned at the inclined plane of the circumferential both sides of connecting elements and the insulating component end face side of connecting elements " of the present invention.

The stator of the 8th execution mode is at the radially inner side of the first component of insulating component and the circumferential both sides of insulating component end face side (stator core side), connecting elements and insulating component end face side (stator core side) is formed with inclined plane, thus, the state being inserted with slot liner component in the mode of axially giving prominence to from stator core end face in the groove of stator core, can easily insulating component be configured on stator core (stator core end face).

In addition, because be formed with protuberance on insulating component end face, and around protuberance, be formed with the second recess, so have the effect identical with the stator of the first execution mode.

In addition, because the part corresponding with exterior wall members on insulating component end face is formed with the 3rd recess, there is the effect identical with the second execution mode.

In addition, as long as inclined plane 821A is at least formed in the radially inner side (central side of groove) of exterior wall members 821 and insulating component end face 824 side, in addition, as long as inclined plane 823A is at least formed in the circumferential both sides of connecting elements 823 and insulating component end face 824 side.

In addition, the radially inner side having and be arranged in exterior wall members 821 can be used and the inclined plane 821A of insulating component end face 824 side and be positioned at the circumferential both sides of connecting elements 823 and the insulating component 820 of at least one party of the inclined plane 823A by insulating component end face side.Now, also can easily insulating component 820 be configured on stator core end face 104a.

In addition, can at stator core end face 104a(104b), insulating component end face 824 forms the recess, protuberance, intercommunicating pore etc. that illustrate in the first to the 7th execution mode.

And, the stator that can also be constructed as follows, this stator at least comprise the radially inner side that has and be formed in exterior wall members 821 and the inclined plane 821A of insulating component end face 824 side and be formed in connecting elements 823 circumferential both sides and by the insulating component 820 of the side in the inclined plane 823A of insulating component end face 824 side.That is, the recess (the first recess) 105 of stator core 100, the protuberance 825 of insulating component 820, recess (the second recess) 826 and recess (the 3rd recess) 827 etc. can omit.

Then, an execution mode of the insulating component manufacture method of the insulating component used in the stator of manufacture first to the 8th execution mode is described with reference to Figure 29, Figure 30.In addition, the figure of Figure 29 to be the situation of the insulating component 120 manufacturing the first execution mode be summary of the insulating component manufacture method exemplifying present embodiment, Figure 30 is the figure representing the finishing die used in the present embodiment.

In the insulating component manufacture method of present embodiment, by being filled in the formingspace of finishing die by resin 900, be integrally formed the insulating component 120 with exterior wall members 121, interior wall members 122, connecting elements 123, protuberance 125, recess (the second recess) 126.Now, as shown in figure 29, corresponding from the leading section of the protuberance 125 with insulating component 120 part is to potting resin formingspace.

In addition, in the insulating component manufacture method of present embodiment, as shown in figure 30, the first mould 910, the second mould 920 as But moving die, the 3rd mould 930, the 4th mould 940 of fixed die is used as finishing die.First mould 910 and the second mould 920 are provided with the forming surface 911 and 921 for the formation of resin passage 901.In addition, the 3rd mould 930 and the 4th mould 940 are provided with the forming surface 931 and 941 for the formation of formingspace 902.

When manufacturing insulating component 120, first, overlapping like that the first mould 910 is to the 4th mould 940 as shown in figure 30.In addition, with regard to the first finishing die 910 to the 4th finishing die 940, when overlapping first finishing die 910 is to the 4th finishing die 940, the resin passage 901 formed by forming surface 911 and 921 is communicated with in the part 903 that the leading section of the protuberance 125 with insulating component 120 is corresponding with the formingspace 902 formed by forming surface 931 and 941.

In this condition, via resin passage 901, resin 900 is filled in formingspace 902.

Then, the second finishing die 920 is pulled up to the 4th finishing die 940 from the first finishing die 910.

Then, the 3rd finishing die 930 and the 4th finishing die 940 is pulled up from the second finishing die 920.

Then, the 4th finishing die 940 is pulled up from the 3rd finishing die 930.Then, insulating component 120 is taken out.

In the insulating component manufacture method of present embodiment, because by from protuberance position in opposite directions by resin filling in formingspace, come one-body molded exterior wall members, interior wall members, for connect exterior wall members and interior wall members connecting elements, there is the insulating component being formed in protuberance on insulating component end face and recess, so the mobility of resin can be improved, manufacture the insulating component of high-quality.

In addition, as the material forming insulating component, be not limited to resin, can adopt and finishing die can be used to be integrally formed the various materials of insulating component.

In addition, as finishing die, be not limited to the finishing die shown in Figure 30, the finishing die of various shape and multiple quantity can be adopted according to the shape of insulating component.

In addition, as the manufacturing process (sequentially) of insulating component, suitable manufacturing process can be adopted according to finishing die etc.

The invention is not restricted to execution mode, various change can be carried out, add, delete.

The shape being formed in the first recess on stator core end face, being formed on insulating component end face and can being entrenched in the protuberance in the first recess can suitably change.In addition, be formed in protuberance on insulating component end face and the second recess or the second recess, the shape, position etc. of the 3rd recess, intercommunicating pore etc. can suitably change.

Be positioned at the radially inner side of first component (exterior wall members) of insulating component and the inclined plane of insulating component end face side, be positioned at connecting elements circumferential both sides and the shape on the inclined plane of insulating component end face side, forming position, forming region can suitably change.

The present invention relates to stator, or there is the whirler of stator, or the insulating component autofrettage of the insulating component of manufacture stator.

The each structure illustrated in embodiments can either be applied separately, also can suitably select multiple carrying out to combine to use.

Claims

1. a stator,

Have:

Stator core, has stator core end face in axial both sides,

Insulating component, is configured in the axial both sides of described stator core, has insulating component end face with described stator core end face position in opposite directions,

Stator winding, is wound on described stator core and described insulating component;

If observe cross section perpendicular to axial direction, then each described insulating component has:

First component, circumferentially extends,

Multiple second component, circumferentially spaced compartment of terrain is configured in the radially inner side of described first component, and circumferentially extends,

Multiple connecting elements, for connecting described first component and each described second component;

The feature of described stator is,

Described stator core end face is formed from the first recessed recess of described stator core end face,

Described insulating component end face is formed the protuberance that can be entrenched in described first recess, and the leading section of described protuberance is given prominence to from described insulating component end face, and is formed around described protuberance from the second recessed recess of described insulating component end face.

2. stator as claimed in claim 1, is characterized in that, described protuberance at least partially with being formed at least partially in the part corresponding with described first component of described insulating component end face of described second recess.

3. stator as claimed in claim 2, is characterized in that, described second recess stride across be formed in described insulating component end face the part corresponding with described first component and the part corresponding with described connecting elements on.

4. stator as claimed in claim 3, is characterized in that, described second recess is formed with the intercommunicating pore being communicated with described connecting elements in the axial direction.

5. stator as claimed in claim 2, is characterized in that,

Each described insulating component has the 3rd recess,

Described 3rd recess is formed in the part corresponding with described connecting elements of described insulating component end face.

6. stator as claimed in claim 5, is characterized in that, described 3rd recess is formed with the intercommunicating pore being communicated with described connecting elements in the axial direction.

7. stator as claimed in claim 1, is characterized in that, described protuberance at least partially with being formed at least partially in the part corresponding with described connecting elements of described insulating component end face of described second recess.

8. the stator according to any one of claim 1 ~ 7, is characterized in that,

Described first component has Part I and Part II, and described Part II is positioned at the described insulating component end face side of described first component and the radial outside of described Part I,

Described second recess extends to the radial outside of the Part I of described first component.

9. stator as claimed in claim 8, is characterized in that,

If observe cross section perpendicular to axial direction, then described stator core has:

Yoke, circumferentially extends,

Multiple tooth, has tooth base portion and tooth leading section, wherein, described tooth base portion extends from described yoke to radially inner side, and described tooth leading section is arranged on the front of described tooth base portion, circumferentially extends, and be formed with tooth front end face in the side contrary with described yoke side

Groove, is formed by two teeth adjacent in the circumference in described yoke and described multiple tooth, forms opening between the tooth leading section of these two teeth;

Described first component of each described insulating component, described second component and described connecting elements are configured in on the yoke of described stator core, described tooth leading section and described tooth base portion position in opposite directions respectively,

Be inserted with from the outstanding slot liner component of described stator core end face in described groove,

Described first component of each described insulating component be arranged in radially inner side and the part of described insulating component end face side and described connecting elements be positioned at circumferential both sides and at least one party of the part of described insulating component end face side is formed as inclined plane,

The inclined plane of described first component is formed as, and described in described insulating component end face lateral extent, the distance of the center line of stator is greater than the distance of the center line of stator described in a lateral extent contrary with described insulating component end face side,

The inclined plane of described connecting elements is formed as, and the interval of described insulating component end face side between the circumferential both sides of described connecting elements is less than the side interval the circumferential both sides of described connecting elements between contrary with described insulating component end face side.

10. stator as claimed in claim 9, is characterized in that, by filling the material for the formation of each described insulating component in the formingspace of finishing die from the part corresponding with described protuberance, be integrally formed each described insulating component.

11. stators as claimed in claim 8, is characterized in that, by filling the material for the formation of each described insulating component in the formingspace of finishing die from the part corresponding with described protuberance, are integrally formed each described insulating component.

12. stators according to any one of claim 1 ~ 7, is characterized in that,

Yoke, circumferentially extends,

13. stators as claimed in claim 12, is characterized in that, by filling the material for the formation of each described insulating component in the formingspace of finishing die from the part corresponding with described protuberance, are integrally formed each described insulating component.

14. stators according to any one of claim 1 ~ 7, is characterized in that, by filling the material for the formation of each described insulating component in the formingspace of finishing die from the part corresponding with described protuberance, be integrally formed each described insulating component.

15. 1 kinds of whirlers, is characterized in that, have rotor and the stator according to any one of claim 9,10,12,13, described rotor is supported for and can rotates, and and have space between the described tooth front end face of described stator.

16. 1 kinds of insulating component manufacture methods, for the manufacture of the insulating component of the stator according to any one of claim 1 ~ 14, it is characterized in that, in the formingspace of finishing die, fill the material for the formation of described insulating component from the part corresponding with described protuberance of described insulating component.