CN104604097A - Stator, stator core for stator, stator core production method, and sheet core bending device - Google Patents
Stator, stator core for stator, stator core production method, and sheet core bending device Download PDFInfo
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- CN104604097A CN104604097A CN201380041842.5A CN201380041842A CN104604097A CN 104604097 A CN104604097 A CN 104604097A CN 201380041842 A CN201380041842 A CN 201380041842A CN 104604097 A CN104604097 A CN 104604097A
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- 238000005452 bending Methods 0.000 title claims description 72
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 239000000463 material Substances 0.000 claims description 121
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 116
- 238000000034 method Methods 0.000 claims description 40
- 239000011159 matrix material Substances 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 235000019994 cava Nutrition 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract 10
- 238000010168 coupling process Methods 0.000 abstract 10
- 238000005859 coupling reaction Methods 0.000 abstract 10
- 230000006866 deterioration Effects 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 41
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
- H02K3/493—Slot-closing devices magnetic
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A first end section (202) and a second end section (203) in a stator core (20) face in the circumferential direction when the stator core (20) forms a ring shape and have: a pair of mutually meshing sections comprising a coupling recessed section (31) and a coupling protruding section (32); and a pair of guiding sections comprising a guiding protruding section (36) and a guiding recessed section (37) that guide so as to position the radial position when the end sections (202, 203) couple prior to the meshing of the coupling recessed section (31) and the coupling protruding section (32). As a result, the coupling recessed section (31) and the coupling protruding section (32) are coupled in a state of having been positioned by the guiding protruding section (36) and the guiding recessed section (37). Therefore the receipt of large stress is avoided until the coupling of the coupling recessed section (31) and the coupling protruding section (32) has been completed. Accordingly, deformation of the coupling section can be prevented, and the deterioration in magnetic properties can be suppressed.
Description
Technical field
The present invention relates to the manufacture method, sheet material iron core (sheet core) bending apparatus that form the stator of electric rotating machine, the stator core of stator and stator core.
Background technology
In the past, as the manufacture method of the stator core of the stator of formation electric rotating machine, have and the iron core of deployed condition is bent into ring-type and the mode linked end.This stator core is made up of the multiple coil parts connected in the circumferential via bent multiple connecting portions, multiple connecting portion bending is deformed into ring-type from deployed condition, makes the end of the circumference under deployed condition dock each other and link, form ring-type thus.
Such as Patent Document 1 discloses and protuberance is set in an end of circumference and recess is set in another end and protuberance is pressed into the stator core of the structure in recess.
In addition, the known stator core be made up of the duplexer of ring-type iron core sheet material, this ring-type iron core sheet material is by being formed banded iron core sheet material looped-shaped bending.Such as, describe the banded iron core sheet material coil part with teeth portion being connected into linearity via connecting portion in patent documentation 2.The breach of V shape is formed between the adjacent coil part in banded iron core sheet material.Banded iron core sheet material makes connecting portion bending in the mode making each breach and narrow and becomes ring-type iron core sheet material.Breach is by constriction, and result becomes the slit extended with linearity.
Prior art document
Patent documentation
Patent documentation 1: patent No. 4579775 publication
Patent documentation 2: Unexamined Patent 9-108143 publication
Summary of the invention
The problem that invention will solve
In the structure of patent documentation 1, if end radial direction each other produces dislocation when the operation linked the end of the stator core after being deformed into ring-type, then protuberance and recess can be applied stress, may produce distortion.Avoid this dislocation, need the precision improving bending process.
The power that must both ends be suppressed to open laterally when linking, while link, therefore, even if want to use assembling fixture to position, is also difficult to guarantee positional precision fully.
In addition, if make jog be fitted together under the state of dislocation, then before having linked, a part for jog contacts and is pressed into, and therefore, there is the problem that stator core is out of shape and stacked change difficulty or stress cause the magnetic characteristic remaining contact site to be deteriorated.
And, when the protuberance of one end of banded iron core sheet material being pressed in the recess of the other end, because peristome width compared with protuberance of recess is formed narrower, therefore, while the peristome of recess being expanded, protuberance is pushed in recess, need very large power.Particularly when have employed multiple banded lamination sheet material layers are folded the manufacture method of looped-shaped bending again, power required when being pressed in recess by protuberance increases.In addition, protuberance must by bending for the connecting portion of banded iron core sheet material while implement to the press-in of recess.Therefore, the artificial stator core that manufactures has difficulties.
On the other hand, in the structure of patent documentation 2, during by banded iron core sheet material looped-shaped bending, connecting portion is bent around and the flexural center be positioned on the edge of connecting portion consistent with the front end of breach.So as made due to resilience, slit opens after bending, the bending of connecting portion returns.As its countermeasure, when connecting portion can be expected to bend, than suitable angle bending returns corresponding amount to because of resilience more.But breach is configured to, after connecting portion having been bent suitable angle, divide breach 2 limits in a side and the opposing party just in time involutory.Therefore, connecting portion how cannot be bent than suitable angle.
The present invention makes in view of the above problems, its object is to the stator providing a kind of electric rotating machine, prevents the distortion that the end dislocation each other during the link operation by stator core causes, and suppresses the magnetic characteristic of linking part to be deteriorated.
Other objects of the present invention are to provide a kind of stator core, make the end link each other of banded iron core sheet material easy.
Other objects in addition of the present invention are the manufacture method providing a kind of stator core, can suppress as make due to resilience the slit of ring-type iron core sheet material open, the bending of connecting portion return.
For solving the means of problem
The invention is characterized in, a kind of stator of electric rotating machine, this stator has and is bent into ring-type and the stator core of mode linked end, and the end of stator core has: more than one pair of link jog, opposed in the circumferential and be mutually fitted together to when this stator core forms ring-type; And more than one pair of guiding jog, guide, the radial position during link to end before linking jog and being fitted together to is positioned.
Thus, jog will be linked link under the state that directed jog is located, therefore, it is possible to avoid being subject to large stress before the link linking jog completes.Therefore, it is possible to prevent the distortion caused by the end dislocation each other when linking operation.As a result, reliable binding strength can be obtained.In addition, because the distortion of linking part diminishes, therefore, it is possible to suppress the magnetic characteristic of linking part to be deteriorated.
Particularly, stator core is consisted of multiple iron core sheet materials stacked, when adopt iron core sheet material is stacked in the deployed state after be bent into ring-type and the manufacture method that end is linked when, the power will opened laterally during link becomes greatly, is more easily subject to stress.
In addition, linking part with interference fit size formed and by press-in carry out, in the structure linked, during link, being still easily subject to stress.
Therefore, when being applied to such stator core, the effect arranging guiding jog of the present invention acquisition is played more.
Accompanying drawing explanation
Fig. 1 is the front view of the alternating current generator of electric rotating machine as the first execution mode of the present invention.
Fig. 2 is the cutaway view of the alternating current generator of Fig. 1.
Fig. 3 is the cutaway view of the stator core assemblies of the first execution mode of the present invention.
Fig. 4 is the front view of the stator core of the first execution mode of the present invention.
Fig. 5 is the figure of the deployed condition of the stator core of Fig. 4.
(a) and (b) of Fig. 6 is the major part enlarged drawing of the link process of the end of the stator core representing Fig. 4 respectively.
(a) and (b) of Fig. 7 is vertical view and the b direction view of the stator core of the second execution mode of the present invention respectively.
(a), (b) and (c) of Fig. 8 is the major part enlarged drawing of the link process of the end of the stator core representing Fig. 7 respectively.
Fig. 9 is the front view of the stator core assemblies of the 3rd execution mode of the present invention.
Figure 10 is the X-X line cutaway view of Fig. 9.
Figure 11 is the front view of the stator core of Fig. 9.
Figure 12 is the front view of material, the i.e. banded iron core sheet material of the stator core of Figure 11.
Figure 13 is the figure of the plate layout represented when going out the banded iron core sheet material of Figure 12 from electromagnetic steel plate stamping-out.
Figure 14 is the enlarged drawing of the arrow XIV part of Figure 12.
Figure 15 is the enlarged drawing of the arrow XV part of Figure 12.
Figure 16 is the enlarged drawing of the arrow XVI part of Figure 12.
The figure of the iron core sheet material at the end of Figure 17 is the first stage representing bending operation.
Figure 18 is the figure of the iron core sheet material at the end of the second stage representing bending operation.
The figure of the iron core sheet material at the end of Figure 19 is the phase III representing bending operation.
Figure 20 is the enlarged drawing of the arrow XX part of Figure 19.
The enlarged drawing of the linking portion of the ring-type iron core sheet material at the end of Figure 21 is link process.
Figure 22 is the XXII-XXII line cutaway view of Figure 20, is the longitudinal section of the expansion fixture used in link process.
Figure 23 is the XXIII-XXIII line cutaway view of Figure 22.
Figure 24 is the XXIV-XXIV line cutaway view of Figure 22.
Figure 25 is the XXV-XXV line cutaway view of Figure 22.
Figure 26 represents that the expansion fixture of Figure 22 is embedded into the figure of the situation till the pars intermedia of insertion section in the through hole linking protuberance.
Figure 27 represents that the expansion fixture of Figure 22 is embedded into the figure of the situation till the base end part of insertion section in the through hole linking protuberance.
Figure 28 is the figure representing the ring-type iron core sheet material being set to down jaw arrangement in the operation of falling pawl.
Figure 29 is the enlarged drawing of the arrow XXIX part of Figure 28.
Figure 30 be represent from the state of Figure 29, the first claw be bent after the figure of situation.
Figure 31 be represent from the state of Figure 30, the second claw be bent after the figure of situation.
Figure 32 is the figure representing the ring-type iron core sheet material completed after whole manufacturing process.
Figure 33 is the figure representing the iron core sheet material bending apparatus used in bending operation.
Figure 34 is the XXXIV-XXXIV line cutaway view of Figure 33.
Figure 35 represents the figure being provided with the situation of banded iron core sheet material in the iron core sheet material bending apparatus of Figure 33.
Figure 36 is the enlarged drawing of the arrow XXXVI part of Figure 35.
Figure 37 is figure when observing matrix and the slide block of Figure 36 from arrow XXXVII direction.
Figure 38 is the figure representing the situation that the slide block of Figure 36 slides relative to matrix.
Figure 39 is figure when observing matrix and the slide block of Figure 38 from arrow XXXIX direction.
Figure 40 is the figure representing situation about being bent by whole connecting portions of banded iron core sheet material by operating by the matrix of the iron core sheet material bending apparatus of Figure 35.
Figure 41 is the figure representing the situation that the whole slide blocks of the iron core sheet material bending apparatus of Figure 40 are slided relative to matrix simultaneously.
Figure 42 is the enlarged drawing of in the ring-type iron core sheet material of the stator core forming the 4th execution mode of the present invention, before link process is tight linking portion.
Figure 43 represents that the link protuberance of the ring-type iron core sheet material preventing Figure 42 and guide protrusion are from the figure linking the situation that recess and guide recess depart from.
Embodiment
Below, based on accompanying drawing, multiple execution mode of the present invention is described.In addition, identical to essence in each execution mode structure is given identical Reference numeral and omits the description.
(the first execution mode)
With reference to Fig. 1 ~ Fig. 6, detailed structure is illustrated to the first execution mode of the present invention.The alternating current generator of " electric rotating machine " as the stator applying the first execution mode is such as equipped on cart, uses as the charging for battery and the magnet-type generator to spark plug and lamp energising etc.
As shown in Figure 1 and Figure 2, alternating current generator 1 is the electric rotating machine of outer-rotor type, is made up of stator 10, rotor 15, position transducer 16 etc.Stator 10 is installed on hood 3 by construction bolt 4.Stator 10 has stator core assemblies 200, insulating part 12 and coil 11.In the present embodiment, 12 coils from the center of stator 10 with radial configuration.
Wiring to coil 11 is electrically connected with connector 18 via cable 17.In addition, the holding wire of drawing from position transducer 16 is connected with in connector 18.
Rotor 15 is made up of rotor subject 51 and rotor matrix 52.
Rotor subject 51 is the cup-shapeds be made up of cylinder portion 511 and bottom 512, and cylinder portion 511 is positioned at the radial outside of stator 10.At the inwall in cylinder portion 511, to be installed with the polarity being circumferentially configured with radially inner side be alternately the first magnet 531 of N pole and the polarity of radially inner side is the second magnet 532 of S pole.In addition, the outer wall in cylinder portion 511 is provided with position detection part 513, position transducer 16 carrys out the rotation status of detection rotor 15 by detection position test section 513.
Rotor matrix 52 is fixed on the bottom 512 of rotor subject 51, is formed with installing hole 523 and keyway 524 at central portion.By being directly linked with the crank axle 2 of engine at this installing hole 523 and keyway 524, rotor 15 and crank axle 2 are rotated integratedly.
When rotor 15 rotates, the magnetic field of the surrounding of coil 11 changes continuously, produces induced current due to the change in this magnetic field in coil 11.This induced current is output as single-phase, three equal alternating currents by the wiring of coil 11.
Below, with reference to the stator 10 of Fig. 3 ~ Fig. 6 to the first execution mode of the present invention, detailed structure is described.
As shown in Figure 3, stator core assemblies 200 by being bonded to upper core 40 and being fixed with rivet 41 and forming on the two sides of stator core 20.The flat shape of upper core 40, corresponding hole site, unanimous on the whole with stator core 20.In addition, the outer edge of upper core 40 is bent by towards the stator core opposition side with axis, limits the radial position of insulating part 12.
As shown in Figure 4, in stator core 20, multiple tooth 23 from annulus 22 to radial outside with radiated entends.In the front end of tooth 23, blade of a sword portion 24 is outstanding to two directions of circumference, limits the winding scope of coil 11.Tooth 23 is wound with coil 11 across insulating part 12.
Be formed in stator core 20: the holes such as the rivet hole 282 that the terminal hole 48 that the through hole 27 that confession construction bolt 4 passes, confession pass for the terminal connected up, confession rivet pass.
Next, formation that with reference to Fig. 3 ~ Fig. 6, stator core 20 is described, that comprise manufacture process.Stator core 20 is consisted of multiple iron core sheet materials 201 stacked, and as shown in Figure 5, each iron core sheet material 201 in the deployed state, is formed by being connected in the circumferential via bent connecting portion 252 by 12 coil parts 21.Make the iron core sheet material 201 of this deployed condition to the Direction distortion of the dotted arrow R of Fig. 5, first end 202 and the second end 203 are docked and link.As a result, 12 annulus 22 arrange as shown in double dot dash line, form the inner peripheral surface of medium pore 14.
At this, adopt stacked for the iron core sheet material 201 of the deployed condition manufacture method stacked stator core 20 being once deformed into after multiple ring-type in the present embodiment.
Each coil part 21 has annulus 22, tooth 23 and 2 blade of a sword portions 24 outstanding towards the front end of tooth 23.Blade of a sword portion 24, as shown in dotted arrow F, is bent in mode circumferentially.
The annulus 22 of adjacent coil part 21 footpath outside left each other connects in bent mode by connecting portion 252.In addition, annulus 22 space each other becomes and the angled slots 26 faced by connecting portion 252.The bottom of angled slots 26 is formed with row's mouth-shaped, to prevent the stress bent from concentrating.
Next, the detailed construction of the linking part arranged in first end 202 and the second end 203 is described with reference to Fig. 5, Fig. 6 (a) and Fig. 6 (b).
As shown in Fig. 6 (a) and Fig. 6 (b), in first end 202, the datum line C2 coaxial with the inner peripheral surface of medium pore 14 is provided with guide protrusion 36, has in the footpath arranged outside of guide protrusion 36 and link recess 31.Guide protrusion 36 is outstanding to circumference from the first end face 33 of first end 202, links recess 31 and caves in circumference from the first end face 33.
In the second end 203, datum line C2 is provided with guide recess 37, has in the footpath arranged outside of guide recess 37 and link protuberance 32.Guide recess 37 caves in from the second end face 38 of the second end 203 to circumference, links protuberance 32 outstanding to circumference from the second end face 38.
At this, the first end face 33 is opposed with the second end face 38, links recess 31 and link protuberance 32 to be mutually positioned on the different concentric circles of diameter from guide protrusion 36 and guide recess 37.
Link recess 31 opposed in the circumferential with mode that can be chimeric when linking protuberance 32 to link, be equivalent to " linking jog a pair ".In addition, guide protrusion 36 is in the same manner as guide recess 37, and the mode that can be fitted together to during to link is opposed in the circumferential, is equivalent to " guiding jog a pair ".The link jog arranged in the end of the same side of first end 202 or the second end 203 and guide jog, when a side is recess, the opposing party is protuberance.
At this, in the present embodiment, the width W 2 linking protuberance 32 is slightly large compared with linking the width W 1 of recess 31, is configured to interference fit size.On the other hand, guide protrusion 36 and guide recess 37 are set to play fit dimension, just can be fitted together to without the need for pressing-in force.
The front end linking protuberance 32 and guide protrusion 36 is formed as semicircle or the rounding shape close to semicircle.In addition, the rounded angle of opening edge of guide recess 37, guides to form when being fitted together to.
Below in the first end 202 formed like that and the link process of the second end 203, first as shown in Fig. 6 (a), the opening edge of the directed recess 37 in guide protrusion 36 guides and starts to be fitted together to, and thus, the radial position at both ends 291,292 is located.
Then, under the state that guide protrusion 36 is directed to guide recess 37, when power is applied to the direction making it dock to both ends 291,292, as as shown in Fig. 6 (b), linking protuberance 32 is pressed in link recess 31, in the position that the first end face 33 abuts with the second end face 38, the link of first end 202 and the second end 203 completes.
Be configured to like this, linking recess 31 and linking while protuberance 32 chimeric complete, guide protrusion 36 and the chimeric of guide recess 37 complete.
The stator of the first execution mode of said structure plays following effect.
(1) guide protrusion 36 arranged in the first end 202 of stator core 20 and the second end 203 and guide recess 37 guide, make link recess 31 and link protuberance 32 chimeric before, radial position during link to both ends 291,292 positions.
Thus, under the state of being located by guide protrusion 36 and guide recess 37, link recess 31 and link protuberance 32 are linked, therefore, it is possible to avoided being subject to larger stress before the link linking recess 31 and link protuberance 32 completes.Therefore, it is possible to prevent the distortion caused by the end dislocation each other when linking operation.As a result, reliable binding strength can be obtained.In addition, the distortion of linking part diminishes, therefore, it is possible to suppress the magnetic characteristic of linking part to be deteriorated.
(2) in the present embodiment, stator core 20 is consisted of multiple iron core sheet materials 201 stacked.In so stacked structure, with carry out compared with stacked method after iron core sheet material 201 is formed as ring-type one by one again, being bent into ring-type again after iron core sheet material 201 is stacked in the deployed state and the method that end links more can be reduced manufacturing man-hours, is therefore favourable.But, when being deformed into ring-type after stacked, when linking, making due to the elasticity of material the power attempting to open laterally become large, being more easily subject to stress.So the effect of above-mentioned (1) that guide protrusion 36 and guide recess 37 are brought is more effective.
(3) in the present embodiment, link recess 31 and link protuberance 32 and formed with interference fit size, linked by press-in, therefore, to coordinate with by play or interference fits carries out, compared with the structure that links, being more easily subject to stress during link.Therefore, the effect of above-mentioned (1) brought of guide protrusion 36 and guide recess 37 is more effective.
(the second execution mode)
With reference to Fig. 7 (a) and Fig. 7 (b), Fig. 8 (a), Fig. 8 (b) and Fig. 8 (c), detailed structure is illustrated to the stator of the second execution mode of the present invention.
As shown in Fig. 7 (a) and Fig. 7 (b), the stator core 20 forming the stator of the second execution mode is except the structure of linking part, similar with the stator core described in the patent documentation 1 of prior art.Stator core 20 is consisted of multiple iron core sheet materials 201 stacked, and each iron core sheet material 201 is by connecting 6 coil parts 21 in the circumferential via connecting portion 252 and forming.
In addition, the diagram of the rivet for being fixed the iron core sheet material 201 after stacked etc. is eliminated.
Each coil part 21 have the outline forming ring when being formed as ring-type outer portion 72, be positioned at outer portion 72 inner side and form the internal ring portion 74 of the inner peripheral surface of medium pore 14 and the tooth 23 that outer portion 72 and internal ring portion 74 is connected diametrically.Not shown coil is wound with in the socket 277 that adjacent tooth 23 is formed each other.The outer portion 72 of adjacent coil part 21 footpath outside left each other connects in bent mode by connecting portion 252.
Under the stacked state of multiple iron core sheet material 201, stator core 20 is deformed into ring-type, the linking part of first end 202 with the second end 203 is linked.The detailed construction of linking part is described with reference to Fig. 8 (a), Fig. 8 (b) and Fig. 8 (c).
As shown in Fig. 8 (a), Fig. 8 (b) and Fig. 8 (c), in first end 202, the center line C7 along outer portion 72 is provided with and links protuberance 32, and the inner edge of outer portion 72 and outer rim are provided with guide recess 37.Link protuberance 32 outstanding to circumference from the bottom surface 83 of guide recess 37.First end face 33 of guide recess 37 is than linking the front end of protuberance 32 closer to front.
In the second end 203, the center line C7 along outer portion 72 is provided with and links recess 31, and the inner edge of outer portion 72 and outer rim are provided with guide protrusion 36.Link recess 31 to cave in from the second end face 38.The basal plane 90 of guide protrusion 36 is than linking the bottom of recess 31 closer to bottom side.
That is, in this second embodiment, across as " a pair link jog " link protuberance 32, link recess 31, be provided with in radial both sides as the guide recess 37 of " two to guiding jog ", guide protrusion 36.
In addition, link protuberance 32 and be formed as, leading section 811 expands diametrically relative to root 812.On the other hand, link recess 31 in the inboard of opening edge 821, be formed with the waist 822 radially narrowed.The width of waist 822 is set to slightly less than the width of leading section 811.
In addition, the chamfering of guiding when becoming chimeric is formed at the opening edge of guide recess 37 and the front end corner part of guide protrusion 36.
In the link process of the first end 202 formed like that above and the second end 203, first, as shown in Fig. 8 (a), guide recess 37 and guide protrusion 36 are guided by mutual chamfering and start to be fitted together to, thus, the radial position at both ends 202,203 is located.
Next, when being fitted to the position shown in Fig. 8 (b), the leading section 811 linking protuberance 32 abuts with the waist 822 linking recess 31.At this, by applying power to both ends 202,203 to the direction making it mutually dock, leading section 811 is made to cross waist 822 and be pressed into.
Then, as shown in Fig. 8 (c), in bottom surface 83 and the position that the second end face 38 abuts and the first end face 33 abuts with basal plane 90, the link of first end 202 and the second end 203 completes.
In addition, during setting accessory size tolerance, also can be configured to, bottom surface 83 is preferentially abutted with any a group in this group of basal plane 90 with second this group of end face 38 or the first end face 33.
Also the effect same with above-mentioned first execution mode can be obtained in this second embodiment.
Like this, what time the second execution mode is just different as follows for the first execution mode: the number of coil part is 12 or 6; For linking part, teeth portion is positioned at outside or is positioned at inner side; Guide jog to be a pair or two right.In other words, such difference is not the part of essence of the present invention, is not limited to the structure of above-mentioned execution mode.Certain link jog is also not limited to a pair, also can arrange two to more than.
(the 3rd execution mode)
Below, with reference to the stator 10 of Fig. 9 ~ Figure 11 to the 3rd execution mode of the present invention, detailed structure is described.
As shown in FIG. 9 and 10, stator core assemblies 200 has: stator core 20; And the both sides of the thickness direction of stator core 20 arrange a pair upper core 40.Stator core 20 and upper core 40 are fixed integratedly by rivet 41.The flat shape of upper core 40, corresponding hole site, unanimous on the whole with stator core 20.In addition, the outer edge 43 of upper core 40, in the axial direction towards a lateral buckling contrary with stator core 20, limits the radial position of insulating part 12.
Stator core assemblies 200 is formed: the annulus 22 of ring-type; From annulus 22 with multiple teeth portion 53 of radiated entends; And from the front end of teeth portion 53 towards multiple blade of a sword portions 24 that two directions of circumference are outstanding.Annulus 22 have pass for construction bolt 4 through hole 27, for holes such as the terminal hole 48 passed for the terminal connected up and the rivet holes 282 that passes for rivet 41.Teeth portion 53 is wound with coil 11 across insulating part 12.The winding scope of the 24 pairs of coils 11 in blade of a sword portion limits.
The duplexer of stator core 20 ring-type iron core sheet material 50 is as shown in Figure 11 formed.
Banded iron core sheet material 60 looped-shaped bending described later is formed by ring-type iron core sheet material 50, has multiple yoke portion 251, multiple connecting portion 252, multiple tooth 23 and multiple claw 54,55.Each yoke portion 251 connects in the circumferential via connecting portion 252.The width of connecting portion 252 radial direction compared with yoke portion 251 is less, can bend, connect each other in the circumferential to the radial outside in adjacent yoke portion 251.Be radially inner side relative to connecting portion 252 and be formed with slit 56 between yoke portion 251 adjacent in circumference.In the front end of slit 56, be formed with the stress dissipation hole 261 for avoiding stress to concentrate when being bent by connecting portion 252.
Tooth 23 extends from yoke portion 251 to radial outside.The width of tooth 23 becomes large continuously from base end part to leading section.In the front end of tooth 23, be provided with 2 claws, i.e. the first claw 54 and the second claw 55.First claw 54 and the second claw 55 are from the front end of tooth 23 to the side of circumference and outstanding raised of opposite side.
Depression 58 is formed in the central authorities of the front end face of tooth 23.In addition, bight formed by the side of the first claw 54 and the second claw 55 and tooth 23, is formed with muscle 59.These depressions 58 and muscle 59 are the trace lines being used for the row's mouth-shaped avoiding stress to concentrate when the first claw 54 and the second claw 55 bend by way in the mill.
Next, the manufacture method of stator core 20 is described with reference to Figure 12 ~ Figure 32.Stator core 20 makes through blank operation, bending operation, link process, the operation of falling pawl.
[blank operation]
First, in blank operation, go out the banded iron core sheet material 60 shown in Figure 12 from electromagnetic steel plate 62 stamping-out.Banded iron core sheet material 60 is made up of the multiple coil parts 21 connecting into linearity via flexible connecting portion 252.Coil part 21 has: yoke portion 251, is connected with connecting portion 252; Tooth 23, extends from yoke portion 251 to the Width of banded iron core sheet material 60; And first claw 54 and the second claw 55, outstanding to the direction identical with the bearing of trend of this tooth 23 from the front end of tooth 23.
In the present embodiment, as shown in figure 13, when will go out 2 banded iron core sheet materials 60 from electromagnetic steel plate 62 stamping-out, plate configurations is entered to make the mode of the tooth 23 of the second banded iron core sheet material 60 between the adjacent tooth 23 of the first banded iron core sheet material 60.
As shown in figure 14, between adjacent yoke portion 251, be formed with the breach 63 of V shape.In the front end of breach 63, be formed with the stress dissipation hole 261 extended along connecting portion 252.A side in the middle of 2 limits of division breach 63 is set to the first limit 64, the opposing party is set to Second Edge 65, when the first virtual line 66 along the first limit 64 is set to imaginary intersection point 68 with the intersection point along the second virtual line 67 of Second Edge 65, imaginary intersection point 68 is positioned at connecting portion 252.
As shown in Figure 15 and Figure 16, in an end of banded iron core sheet material 60, i.e. first end 202, be formed with the link recess 31 that necking down has peristome, and, in another end of banded iron core sheet material 60, i.e. the second end 203, be formed with the link protuberance 32 that can insert and link in recess 31.
The inwall linking recess 31 has a pair taper surface 78 opposed in the direction of the width.In addition, relative to link recess 31 in the both sides of Width, be formed from the outstanding guide protrusion 36 of the first end face 33 of first end 202.This guide protrusion 36, together with guide recess 37 described later, forms the guiding jog guided to the insertion linking recess 31 link protuberance 32.
Link protuberance 32 and there is the through through hole of through-thickness 77.In the present embodiment, through hole 77 is circular.This through hole 77 is out of shape to Width for making link protuberance 32 in link process described later.In addition, relative to link protuberance 32 in the both sides of Width, the guide recess 37 caved in from the second end face 38 of the second end 203 is formed.
[bending operation]
In bending operation, the banded iron core sheet material 60 of Figure 12 is looped-shaped bending through 3 stages, forms the ring-type iron core sheet material 50 of Figure 19.Below will be described in detail.The manufacture method of looped-shaped bending again after having adopted multiple banded iron core sheet materials 60 in the present embodiment stacked.
First, in the first stage, as shown in figure 17, the central connection 252a being positioned at the central authorities of long side direction maintaining banded iron core sheet material 60 is constant and bent by other connecting portions 252.When connecting portion 252 is bent, representing as amplified in Fig. 4, around the flexural center 75 being positioned at breach 63 side relative to connecting portion 252, connecting portion 252 being bent.Thus, connecting portion 252 broad ways all by circumferential tension.In addition, connecting portion 252 is around the bending angle identical with the opening angle θ of breach 63 in flexural center 75.Therefore, the front curve contacted with Second Edge 65 on the first limit 64 terminates.
Then, in second stage, as shown in Figure 18, central connection 252a is bent.A pair coil part 21 that the connecting portion 252 finishing to bend connects is constrained for each other can not relative movement, till second stage terminates, namely till the bending end of whole connecting portions 252.In the bending stage finished of whole connecting portion 252, between each yoke portion 251, be formed with the gap 76 with radiated entends.
Then, in the phase III, a pair coil part 21 that the connecting portion 252 finishing to bend connects constraint is each other removed.Now, connecting portion 252 due to when bending Width all by circumferential tension, therefore, as due to resilience to circumference retract, recoverable force.Recovery now acts on as closed in gap 76, therefore, as shown in figure 19, defines the ring-type iron core sheet material 50 of very close to each other 76.
[link process]
In link process, as shown in figure 20, in the stage finishing bending operation, depart from from link recess 31 by preventing from inserting the link protuberance 32 linked in recess 31, and the first end 202 of ring-type iron core sheet material 50 and the second end 203 are linked.Below will be described in detail.
Link protuberance 32 as shown in figure 21, in the mode making the Breadth Maximum of this link protuberance 32 larger than the A/F of the peristome 73 linking recess 31, through hole 77 expanded and make link protuberance 32 to Width distortion, preventing from thus departing from from link recess 31.The distortion to Width of this link protuberance 32 uses the expansion fixture 100 shown in Figure 22 ~ Figure 25 to carry out.
Expand fixture 100 to be made up of press section 101 and the bar-shaped insertion section 102 that extends from press section 101.Insertion section 102 is formed: a pair arc surface 103,104; And by plane 105,106 that the end of arc surface 103 and arc surface 104 is connected to each other.Arc surface 103 and arc surface 104 with angle formed by plane 105 and plane 106 with fillet.Plane 105 and plane 106 are parallel to each other.The width X2 of the short side direction in the through hole 77 after the width between plane 105 with plane 106, i.e. distortion shown in two face width degree X1 and Figure 21 is roughly the same.
Insertion section 102 is formed as, from leading section 107 via pars intermedia 108 till base end part 109, Breadth Maximum becomes large continuously.Arc surface 103a, 104a of the leading section 107 of insertion section 102 are the shapes at the edge of the through hole 77 along the circle before the distortion shown in Figure 20.In other words, the Breadth Maximum Y1 of leading section 107 is roughly the same with the diameter D of the through hole 77 before distortion.Arc surface 103c, 104c of the base end part 109 of insertion section 102 be along with the distortion shown in Figure 21 after through hole 77 in the middle of the shape of inwall of long side direction.In other words, the Breadth Maximum Y3 of base end part 109 is roughly the same with the width Y4 of the long side direction in the through hole 77 after distortion.The Breadth Maximum Y2 of the pars intermedia 108 of insertion section 102 is larger than the Breadth Maximum Y1 of leading section 107, and less than the Breadth Maximum Y3 of base end part 109.
Expand fixture 100 by as in Figure 22, Figure 26, Figure 27 successively shown in insertion section 102 is inserted in through hole 77, and by through hole 77 to Width expansion, link protuberance 32 is out of shape greatly like that to Width change.Linking protuberance 32 by being deformed as described above, being close to taper surface 78 ground linking recess 31 and being fixed.Thus, link protuberance 32 carries out face with the taper surface 78 linking recess 31 and contacts, and can obtain reliable binding strength.
As shown in figure 21, relative to linking recess 31 and linking protuberance 32 in the both sides of Width, be provided with and guide jog 79.Jog 79 is guided to be made up of guide protrusion 36 and guide recess 37, described guide protrusion 36 is given prominence to relative to linking first end face 33 of recess 31 position adjacent in the direction of the width from first end 202, and described guide recess 37 caves in from the second end face 38 of the second end 203 relative to the position linking protuberance 32 adjacent in the direction of the width.Jog 79 is guided to work as the guide guided to the insertion linking recess 31 link protuberance 32.
[operation of falling pawl]
In the operation of falling pawl, the first claw 54 of ring-type iron core sheet material 50 and the second claw 55 were fallen from root in the mode extended to side and the opposite side of circumference.Below will be described in detail.
First, as shown in figure 28, the ring-type iron core sheet material 50 finishing link process is set to down jaw arrangement 85.The jaw arrangement 85 that falls possesses holding station 86 and drift 87.Holding station 86 has the bearing part 88 that can support tooth 23 both sides in the width direction.
In this stage, as shown in figure 29, formed by the front end 91 of the first claw 54 of ring-type iron core sheet material 50 and the second claw 55 and tooth 23, angle 92 is with fillet.In addition, formed by the side 93 of the first claw 54 and the second claw 55 and tooth 23, angle is formed with depression 94.The shape of the leading section of drift 87 is shapes identical with the space divided between first claw 54 and the second claw 55 of ring-type iron core sheet material 50.That is, when drift 87 is inserted between the first claw 54 and the second claw 55, abut along the first claw 54, second claw 55 and tooth 23.
After ring-type iron core sheet material 50 is set to down jaw arrangement 85, as shown in figure 30, around the center of rotation 89 consistent with the center of curvature at angle 92, drift 87 is rotated, the first claw 54 is bent in the mode of falling down from root 95.Now, drift 87 contacts while bent by this first claw 54 from root 95 to the terminal part 96 of the first claw 54 continuously, between the bearing part 88 of both sides being configured in Width relative to tooth 23, clamp the first claw 54.In addition, the part near the depression 94 in the root 95 of the first claw 54 is compressed, and clout is kept out of the way in depression 94, thus form muscle 59.
Afterwards, the second claw 55, also in the same manner as the first claw 54, as shown in figure 31, is bent in the mode of falling down from root 95, thus completes the duplexer of the ring-type iron core sheet material 50 shown in Figure 32.
The first claw 54 after bending and the second claw 55 are positioned at outermost diametrically among ring-type iron core sheet material 50, when as shown in Figure 2 stator 10 being assembled in alternating current generator 1, form the radially-outer surface 97 opposed with rotor 15.As shown in figure 32, the radially-outer surface 97 of the first claw 54 and the second claw 55 is arc surfaces consistent with the imaginary circles C concentric with the medium pore 14 of ring-type iron core sheet material 50.In the present embodiment, as shown in figure 29, in the stage before the first claw 54 and the second claw 55 are bent, the opposed faces 99 opposed with drift 87 in the first claw 54 and the second claw 55 is formed as the face of the arc-shaped corresponding with imaginary circles C.
Next, the iron core sheet material bending apparatus used in bending operation is described based on Figure 33 ~ Figure 41.
Iron core sheet material bending apparatus 110 is made up of multiple slide block 111, matrix 112, rotating shaft 113.Slide block 111, as shown in Figure 34 ~ Figure 36, is the holding parts that can hold iron-core element 21, has the groove 114 embedded for coil part 21.Inwall 115 in groove 114 can support yoke portion 251, and the inwall 116,117 in groove 114 can to clip the mode support teeth 23 of tooth 23.
Slide block 111 is installed on matrix 112.Each matrix 112 is connected via rotating shaft 113, and one of adjacent matrix 112 can enough relatively rotate around the axle center of rotating shaft 113 relative to the opposing party.
Slide block 111 in Figure 36 ~ Figure 39 as indicated by the arrows, can relative to matrix 112, the bearing of trend to the tooth 23 of held iron-core element 21 slides.Specifically, slide block 111 can relative to matrix 112 from the first state relative movement to the second state, wherein, first state is as shown in figure 36, the state that the flexural center 75 of the iron-core element 21 held is consistent with the axle center 118 of rotating shaft 113, second state is as shown in figure 38, the state that the imaginary intersection point 68 of the iron-core element 21 held is consistent with the axle center 118 of rotating shaft 113.
Iron core sheet material bending apparatus 110 is before the first stage of bending operation, be set up banded iron core sheet material 60 as shown in figure 35 like that, in first stage and second stage, each matrix 112 is operated, after such whole connecting portion 252 is bent as shown in figure 40 thus, whole slide block 111 is slided relative to matrix 112 simultaneously, allows the resilience of connecting portion 252, as shown in figure 41 such shaping loop iron core sheet material 50.
As discussed above, in the present embodiment, in bending operation, connecting portion 252 is bent centered by the flexural center 75 being positioned at breach 63 side relative to connecting portion 252.Therefore, by the connecting portion 252 of banded iron core sheet material 60 bending and become ring-type iron core sheet material 50 time, connecting portion 252 at Width all by circumferential tension.Therefore, if by bending for the connecting portion 252 rear constraint removing ring-type iron core sheet material 50, then connecting portion 252 is retracted to circumference due to resilience, recoverable force.Recovery now acts on as closed by breach 63.Therefore, according to the present embodiment, can suppress as make due to resilience the slit 56 of ring-type iron core sheet material 50 open, the bending of connecting portion 252 return.
In addition, in the present embodiment, in the front end of the breach 63 of banded iron core sheet material 60, the stress dissipation hole 261 extended along connecting portion 252 is formed.Therefore, when connecting portion 252 is bent, can prevent producing stress at a place at the edge of breach 63 and concentrate.
In addition, in the present embodiment, intersection point, i.e. imaginary intersection point 68 between the first virtual line 66 along the first limit 64 of division breach 63 and the second virtual line 67 along Second Edge 65, consistent with the edge of connecting portion 252.Therefore, flexural center 75 must than imaginary intersection point 68 near breach 63 side.
In addition, in the present embodiment, when being bent by connecting portion 252 in bending operation, make connecting portion 252 around the bending angle identical with the opening angle θ of breach 63 in flexural center 75, the bending end of connecting portion 252 between the first limit 64 contacts with Second Edge 65.Therefore, it is possible to guarantee gap 76, connecting portion 252 can be retracted to circumference by resilience.
In addition, in the present embodiment, in bending operation, before the bending end of whole connecting portion 252, a pair coil part 21 that the connecting portion 252 finishing to bend connects is constrained for each other can not relative movement.Therefore, it is possible to make the resilience simultaneously of whole connecting portion 252, the roundness of the medium pore 14 of stator core 20 can be guaranteed.In addition, multiple connecting portion 252 can be bent simultaneously, can manufacturing man-hours be reduced.
In addition, in the present embodiment, the slide block 111 of iron core sheet material bending apparatus 110 can slide into the second state relative to matrix 112 from the first state, this first state is the flexural center 75 of held coil part 21 state consistent with the axle center 118 of rotating shaft 113, and this second state is the imaginary intersection point 68 of held coil part 21 state consistent with the axle center 118 of rotating shaft 113.Therefore, in bending operation, first, by whole slide blocks 111 of iron core sheet material bending apparatus 110 are set to the first state, connecting portion 252 can be bent around the flexural center 75 being positioned at breach 63 side relative to connecting portion 252.Then, after whole connecting portion 252 is bent, by whole slide blocks 111 of iron core sheet material bending apparatus 110 are set to the second state simultaneously, the resilience simultaneously of whole connecting portion 252 can be made.
And in the present embodiment, the first end 202 of ring-type iron core sheet material 50 has to circumference depression and necking down has the link recess 31 of peristome 73.The second end 203 of ring-type iron core sheet material 50 has to circumference outstanding and can insert the link protuberance 32 linked in recess 31.When first end 202 docks with the second end 203 in bending operation, link protuberance 32 and be inserted in link recess 31, in the link process implemented after bending operation, to Width distortion, prevent from departing from from link recess 31.The through hole 77 had by making link protuberance 32 expands to Width, and link protuberance 32 is out of shape to Width.
Therefore, very large power is not needed when link protuberance 32 being inserted and linked in recess 31.In addition, the bending operation that the link process making link protuberance 32 be out of shape is bending from the connecting portion 252 by banded iron core sheet material 60 is different operation.In other words, do not need bending while link each other end for the connecting portion 252 of banded iron core sheet material 60.Therefore, according to the present embodiment, can easily by connected to each other for the end of banded iron core sheet material 60.
In addition, in the present embodiment, in link process to Width expand before through hole 77 be circle.Therefore, when being expanded to Width by through hole 77, can prevent stress from concentrating on a place at the edge of through hole 77.
In addition, in the present embodiment, the A/F linking recess 31 becomes large continuously from peristome 73 to bottom, and the inwall linking recess 31 has a pair taper surface 78 opposed in the direction of the width.Link protuberance 32 and be close to the taper surface 78 linking recess 31 when being out of shape.Thereby, it is possible to obtain reliable binding strength, and, the magnetic resistance between first end 202 and the second end 203 can be reduced.
In addition, in the present embodiment, first, the central connection 252a being positioned at the central authorities of long side direction maintaining banded iron core sheet material 60 is constant and bent by other connecting portions 252, is then bent by central connection 252a.Thereby, it is possible to link protuberance 32 is inserted as the crow flies relative to link recess 31.
(the 4th execution mode)
The ring-type iron core sheet material of the stator core forming the 4th execution mode of the present invention is described based on Figure 42 and Figure 43.In addition, the structure identical with the structure essence of the 3rd execution mode is given identical Reference numeral and omitted the description.As shown in figure 42, the Width at peristome 73 place of the guide recess 37 that the second end 203 being about to the ring-type iron core sheet material 50 carried out before link process has protruding outside.Link in link process the width of protuberance 32 extended time, guide protrusion 36 is pressed to Width by this link protuberance 32, as shown in figure 40, prevents this guide protrusion 36 to depart from from guide recess 37.Therefore, it is possible to first end 202 and the second end 203 are linked more firmly.
(other execution modes)
In other execution modes of the present invention, stator core is not limited to the structure of multiple iron core sheet materials stacked, also can be formed by a plate.Link jog to be not limited to be formed and bulged-in structure with interference fit size, also can be formed with play cooperation or interference fits size.In this situation, the escapement preventing the part carrying out linking from departing from preferably is set.
In addition, in other execution modes of the present invention, also can be, stacked by carrying out again after 1 banded iron core sheet material looped-shaped bending.
In addition, in other execution modes of the present invention, also can be carry out the banded iron core sheet material of stamping-out from the sheet material beyond electromagnetic steel plate.
In addition, in other execution modes of the present invention, in link process to Width expand before through hole be not limited to circle, also can be such as other shapes such as ellipse, rectangle.
In addition, in other execution modes of the present invention, also can be, link protuberance to Width distortion with link the inwall point cantact of recess or linear contact lay, prevent from thus departing from from this link recess.Such as, also can be form projection in the both sides of the Width linking protuberance, make link convex part deformation to make this projection with the mode of the contact internal walls linking recess.
In addition, in other execution modes of the present invention, the cross section expanding the insertion section of fixture also can not have plane and only be made up of curved surface.
In addition, the electric rotating machine employing stator of the present invention is not limited to two-wheel vehicle used alternating current generator, also can be applied to the motor such as generator or brushless motor of various uses.
The invention is not restricted to above-mentioned execution mode, can implement in every way within a range not departing from the gist of the invention.
The explanation of Reference numeral
1 alternating current generator (electric rotating machine),
10 stators,
11 coils,
20 stator cores,
21 coil parts,
252 connecting portions,
202 first ends,
203 the second ends,
31 link recess,
32 link protuberance,
36 guide protrusions,
37 guide recess,
50 ring-type iron core sheet materials,
60 banded iron core sheet materials,
62 electromagnetic steel plates (sheet material),
63 breach,
75 flexural centers.
Claims (22)
1. a stator, is the stator (10) of electric rotating machine, possesses: stator core (20); And coil (11), with described stator core insulation, and be wound on described stator core, the feature of this stator is,
Described stator core is made up of the multiple coil parts (21) connected in the circumferential via bent multiple connecting portions (252), it is made to be deformed into ring-type from deployed condition described multiple connecting portion bending, circumference under deployed condition end and first end (202) and another end and the second end (203) docking are gone forward side by side joining line, thus described stator core is formed as ring-type
Described first end and the described the second end of described stator core have:
More than one pair of link jog (31,32), when this stator core forms ring-type, opposed in the circumferential, and be mutually fitted together to; And
More than one pair of guiding jog (36,37), guides, and radial position when linking described first end and described the second end before described link jog is fitted together to is positioned.
2. stator as claimed in claim 1, is characterized in that,
Described stator core is consisted of multiple iron core sheet materials (201) stacked.
3. stator as claimed in claim 1 or 2, is characterized in that,
Described link jog is formed with interference fit size, links by being pressed into.
4. the stator according to any one of claims 1 to 3, is characterized in that,
Described link jog and described guiding jog are positioned on diameter concentric circles different from each other.
5. the stator according to any one of Claims 1 to 4, is characterized in that,
Described stator is configured to, and while described link jog chimeric completes, described the chimeric of guiding jog completes.
6. the stator according to any one of Claims 1 to 5, is characterized in that,
The described link jog arranged in the end of the same side of described first end or described the second end and described guiding jog, when a side is recess, the opposing party is protuberance.
7. a stator core, it is the stator core (20) of the stator (10) used in electric rotating machine (1), this stator core (20) is made up of the duplexer of ring-type iron core sheet material (50), this ring-type iron core sheet material (50) is banded iron core sheet material (60) looped-shaped bending by being made up of the multiple coil parts (21) connecting into linearity via flexible connecting portion (252), and an end of this banded iron core sheet material and first end (202) and another end and the second end (203) docking are formed, it is characterized in that,
Described first end has to circumference depression and necking down has the link recess (31) of peristome (73),
The described the second end of described ring-type iron core sheet material has to circumference outstanding and to the through through hole (77) of thickness direction, and there is the link protuberance (32) inserted when described first end docks with described the second end in described link recess
Described link protuberance, in the mode making the Breadth Maximum of this link protuberance be greater than the A/F of the described peristome of described link recess, makes described through hole expand to Width and be out of shape to Width, thus prevents from departing from from described link recess.
8. stator core as claimed in claim 7, is characterized in that,
The angle of described through hole is with fillet.
9. stator core as claimed in claim 7 or 8, is characterized in that,
Described through hole is the elongated hole extended in the direction of the width.
10. the stator core according to any one of claim 7 ~ 9, is characterized in that,
The inwall of described link recess has a pair taper surface (78) opposed in the direction of the width,
Described link protuberance and described taper surface carry out face and contact.
11. stator cores according to any one of claim 7 ~ 10, is characterized in that,
When the described connecting portion being positioned at the central authorities of long side direction of described banded iron core sheet material is set to central connection (252a),
Described banded iron core sheet material is configured to, and in the first stage, maintains described central connection constant and connecting portion described in other is bent, in second stage, described central connection is bent, and make described link protuberance insert described link recess.
12. stator cores according to any one of claim 7 ~ 11, is characterized in that,
Relative to described link recess and described link protuberance in the side of Width or both sides, be provided with the guiding jog (79) that described link protuberance is guided to the insertion of described link recess.
13. stator cores as claimed in claim 12, is characterized in that,
Described guiding jog comprises:
Guide protrusion (36), the position adjacent in the direction of the width relative to described link recess, gives prominence to from first end face (33) of described first end; And
Guide recess (37), the position adjacent in the direction of the width relative to described link protuberance, caves in from second end face (38) of described the second end.
14. stator cores as claimed in claim 13, is characterized in that,
Described guide recess (37) necking down has peristome (73),
Described guide recess is inserted when described first end docks with described the second end in described guide protrusion, when the width expansion of described link protuberance, is pressed to Width by this link protuberance, thus prevents from departing from from described guide recess.
The manufacture method of 15. 1 kinds of stator cores, it is the manufacture method of the stator core (20) of the stator (10) used in electric rotating machine (1), this stator core (20) is made up of the duplexer of the ring-type iron core sheet material (50) formed by banded iron core sheet material (60) looped-shaped bending, it is characterized in that, comprising:
Blank operation, goes out the described banded iron core sheet material be made up of the multiple coil parts (21) connecting into linearity via flexible connecting portion (252) from sheet material (62) stamping-out; And
Bending operation, bends the described connecting portion of described banded iron core sheet material, by an end (202) of this banded iron core sheet material and the other end (203) docking, forms described ring-type iron core sheet material,
Relative to the side of described connecting portion in the Width of described banded iron core sheet material among described banded iron core sheet material, the breach (63) of the V shape that the gap between being formed by adjacent described coil part is formed,
In described bending operation, around relative to the flexural center (75) of described connecting portion in described notch side, described connecting portion is bent.
The manufacture method of 16. stator cores as claimed in claim 15, is characterized in that,
In the front end of the described breach of described banded iron core sheet material, be formed with the stress dissipation hole (261) extended along described connecting portion.
The manufacture method of 17. stator cores as described in claim 15 or 16, is characterized in that,
By divide described breach 2 limits in a side be set to the first limit (64), the opposing party is set to Second Edge (65) time,
In described banded iron core sheet material, intersection point between the first virtual line (66) along described first limit and the second virtual line (67) along described Second Edge and imaginary intersection point (68), consistent with the edge of described connecting portion.
The manufacture method of 18. stator cores as claimed in claim 17, is characterized in that,
In described bending operation, before described first limit contacts with described Second Edge, the bending end of described connecting portion.
The manufacture method of 19. stator cores as claimed in claim 18, is characterized in that,
In described bending operation, described connecting portion is made to bend the angle identical with the opening angle of described breach (θ) around described flexural center.
The manufacture method of 20. stator cores according to any one of claim 15 ~ 19, is characterized in that,
In described bending operation, before the bending end of whole described connecting portions, coil part described in the described connecting portion finishing to bend connect a pair is constrained for each other can not relative movement.
21. 1 kinds of stator cores,
Formed by the manufacture method manufacture of the stator core described in claim 15 ~ 20.
22. 1 kinds of iron core sheet material bending apparatuss, be the iron core sheet material bending apparatus (110) used in the bending operation of the manufacture method of the stator core described in claim 15 ~ 20, the feature of this iron core sheet material bending apparatus is to possess:
Multiple matrix (112), connects via rotating shaft (113); And
Multiple holding parts (111), are installed on described matrix, can hold described coil part;
When intersection point between the first virtual line (66) along the side in 2 limits dividing described breach and the second virtual line (67) along the opposing party is set to imaginary intersection point (68),
Described holding parts can relatively described matrix, from the state that the described flexural center of held described coil part is consistent with the axle center (118) of described rotating shaft, relative movement is to the described imaginary intersection point of the held described coil part state consistent with the axle center of described rotating shaft.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012176522A JP5996962B2 (en) | 2012-08-08 | 2012-08-08 | Stator |
| JP2012-176522 | 2012-08-08 | ||
| JP2013-033061 | 2013-02-22 | ||
| JP2013033061A JP6185254B2 (en) | 2013-02-22 | 2013-02-22 | Stator core |
| JP2013-033052 | 2013-02-22 | ||
| JP2013033052A JP6179124B2 (en) | 2013-02-22 | 2013-02-22 | Stator core, method for manufacturing stator core, and sheet core bending apparatus |
| PCT/JP2013/071542 WO2014024987A1 (en) | 2012-08-08 | 2013-08-08 | Stator, stator core for stator, stator core production method, and sheet core bending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104604097A true CN104604097A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380041842.5A Pending CN104604097A (en) | 2012-08-08 | 2013-08-08 | Stator, stator core for stator, stator core production method, and sheet core bending device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104604097A (en) |
| WO (1) | WO2014024987A1 (en) |
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| CN109075628A (en) * | 2016-04-08 | 2018-12-21 | 三菱电机株式会社 | Iron-core and its manufacturing method is laminated |
| CN109222397A (en) * | 2018-10-19 | 2019-01-18 | 温州知守智能科技有限公司 | A kind of gluing flat brush and preparation method thereof |
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| JP6400859B2 (en) * | 2015-11-12 | 2018-10-03 | 三菱電機株式会社 | Iron core device and manufacturing method thereof |
| KR20200085122A (en) * | 2019-01-04 | 2020-07-14 | 현대모비스 주식회사 | Stator assembly for hairpin winding |
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| JP3674599B2 (en) * | 2002-05-02 | 2005-07-20 | 日本電産シバウラ株式会社 | Electric motor core, electric motor, and method for manufacturing electric motor core |
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- 2013-08-08 WO PCT/JP2013/071542 patent/WO2014024987A1/en active Application Filing
- 2013-08-08 CN CN201380041842.5A patent/CN104604097A/en active Pending
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| JPH10174319A (en) * | 1996-12-17 | 1998-06-26 | Shinko Electric Co Ltd | Stator of electric rotary machine |
| JPH10285840A (en) * | 1997-04-02 | 1998-10-23 | Honda Motor Co Ltd | Stator core |
| CN1581639A (en) * | 2003-08-07 | 2005-02-16 | 日本电产芝浦株式会社 | Motor iron core, motor and method for manufacturing motor ironcore |
| JP2006352991A (en) * | 2005-06-15 | 2006-12-28 | Toshiba Industrial Products Manufacturing Corp | Stator core for rotating electric machine and stator |
| JP2007082275A (en) * | 2005-09-12 | 2007-03-29 | Koatekku:Kk | Structure for coupling two member, core of dynamo-electric machine having the same |
| JP2010233374A (en) * | 2009-03-27 | 2010-10-14 | Canon Inc | Inner rotor type motor |
| JP2010239721A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Automotive Systems Ltd | Rotary electric machine |
| JP2011030320A (en) * | 2009-07-23 | 2011-02-10 | Yaskawa Electric Corp | Dynamo-electric machine and method of manufacturing the same |
| CN101989772A (en) * | 2009-07-31 | 2011-03-23 | 株式会社日立制作所 | Rotating electrical machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075628A (en) * | 2016-04-08 | 2018-12-21 | 三菱电机株式会社 | Iron-core and its manufacturing method is laminated |
| CN109075628B (en) * | 2016-04-08 | 2021-08-06 | 三菱电机株式会社 | Laminated core and method for manufacturing same |
| CN109222397A (en) * | 2018-10-19 | 2019-01-18 | 温州知守智能科技有限公司 | A kind of gluing flat brush and preparation method thereof |
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| Publication number | Publication date |
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| WO2014024987A1 (en) | 2014-02-13 |
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