CN102868239A - Stator core, motor and method for manufacturing motor - Google Patents
Stator core, motor and method for manufacturing motor Download PDFInfo
- Publication number
- CN102868239A CN102868239A CN2012102360801A CN201210236080A CN102868239A CN 102868239 A CN102868239 A CN 102868239A CN 2012102360801 A CN2012102360801 A CN 2012102360801A CN 201210236080 A CN201210236080 A CN 201210236080A CN 102868239 A CN102868239 A CN 102868239A
- Authority
- CN
- China
- Prior art keywords
- core
- stator
- upright
- link
- determination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to a stator core, a motor and a method for manufacturing the motor, wherein the stator core is provided with an iron core body (3) and a connection component (4), the iron core body (3) bends a straight iron core (2) to form an annular iron core through using the gap portion (13) between toothed portions (12) as a supporting point, the straight iron core (2) is formed through protruding from the back portion (11) of the strip iron core in a shape of comb through a plurality of toothed portions (12), the connection component (4) connects two circumferential end portions of the straight iron core (2) forming the iron core body (3) together, the iron core body (3) is provided with projection portions (18, 19) and a concave portion (25), the projection portions are arranged at the two circumferential end portions of the peripheral surface of the iron core body (3), the projection portions (18, 19) are axially protruding outwards and arranged circumferentially, the concave portion (25) is formed between the projection portions (18, 19), the concave portion (25) is opened towards the axial outer side thereof, and the connection component (4) is connected with the end portion of the iron core body (13) through being clamped with the concave portion.
Description
Technical field
The invention belongs to stator core, have the related technical field of manufacture method of motor and the motor of stator core.
Background technology
A kind of stator core in the past has the rear of core of ring-type and circumferentially equally spaced is configured in the tooth section of the interior perimembranous of rear of core.This stator core have form circular-arc a plurality of splits unshakable in one's determination be connected connection and fix each split iron core fixedly use metal parts.Japan Patent discloses the stator core of using upright core for No. 3681487.
Summary of the invention
The disclosed stator core of the application has: body unshakable in one's determination, and it forms ring-type take the notch part that is formed between each tooth section as the crooked upright core of fulcrum, and above-mentioned upright core is by making a plurality of tooth section be from the rear of core of band shape that pectination is outstanding to be formed; And link, its circumferential both ends for the upright core that will consist of above-mentioned body unshakable in one's determination couple together.At the circumferential both ends of the outer peripheral face of the upright core that consists of above-mentioned body unshakable in one's determination, be formed with respectively outstanding to radial outside and be arranged in circumferential two protuberances and be formed on therebetween by these two protuberances and to the recess of radial outside opening.The fillet that above-mentioned link is crossed between the both ends of above-mentioned upright core is configured, and by being connected this end with each recess engaging of the outer peripheral face that is formed on these both ends.
Description of drawings
Fig. 1 is the vertical view related stator core of expression execution mode, that see from stator shaft orientation.
Fig. 2 is the vertical view of expression upright core.
Fig. 3 A is the amplification plan view at the two ends of the related body unshakable in one's determination (upright core) of present embodiment.
Fig. 3 B is the amplification plan view at the two ends of the related body unshakable in one's determination of comparative example.
Fig. 4 is the end view of expression link.
Fig. 5 A is the vertical view with steel.
Fig. 5 B is the vertical view of upright core.
Fig. 5 C is the vertical view of upright core.
Fig. 5 D is the vertical view of upright core.
Fig. 5 E is the vertical view of stator core.
Fig. 5 F is the vertical view of stator core.
Fig. 6 is the vertical view that has used the motor of the related stator core of embodiment of the present invention.
Fig. 7 A is the cutaway view of stator and mould.
Fig. 7 B is the cutaway view of stator and mould.
Fig. 7 C is the cutaway view of stator.
Fig. 8 is the vertical view related stator of expression execution mode 2, that see from stator shaft orientation.
Fig. 9 is the end view of the first related link of expression execution mode 2.
Figure 10 A is the vertical view with steel.
Figure 10 B is the vertical view of upright core.
Figure 10 C is the vertical view of upright core.
Figure 10 D is the vertical view of upright core.
Figure 10 E is the vertical view of stator core.
Figure 10 F is the vertical view of stator core.
Figure 11 is the vertical view of other execution modes of expression stator core.
Figure 12 A is the partial top view of other execution modes of expression stator core.
Figure 12 B is the partial top view of other execution modes of expression stator core.
Figure 13 A is the partial top view of other execution modes of expression stator core.
Figure 13 B is the partial top view of other execution modes of expression stator core.
Embodiment
A kind of stator core in the past has the rear of core of ring-type and circumferentially equally spaced is configured in the tooth section of the interior perimembranous of rear of core (for example, Japanese Patent Publication communique 2001-45684 number disclosed).This stator core have form circular-arc a plurality of splits unshakable in one's determination be connected connection and fix each split iron core fixedly use metal parts.The circumferential both ends of the outer peripheral face of each split iron core have respectively slot part.Be located at fixing therewith slot part engaging of claw with metal parts by making, thereby adjacent split iron core can be coupled together.From axially, this slot part tilts towards the border side that each split iron core of interior side direction is connected from radial outside.
In the structure that connects with the formation stator core unshakable in one's determination with circular-arc split, the low problem of rate of finished products of material when existing the die-cut split of compacting unshakable in one's determination.Use the stator core of upright core to address this problem.For example, the stator core of using upright core is disclosed in No. the 3681487th, the Japan Patent.This upright core has banded rear of core and is the outstanding tooth section of pectination from rear of core.This stator core engages the two ends of upright core to be formed on V word shape notch part between each tooth section as the crooked upright core of fulcrum, thus the ring-type of forming.The soldered joint in the end of upright core.
For example, there is the possibility that can not obtain desired motor characteristics because the thermal contraction during welding causes dimensional accuracy to descend in disclosed stator core in No. the 3681487th, the Japan Patent.
The structure that connects the both ends of upright core with metal parts by fixing is disclosed in Japanese Patent Publication communique 2001-45684 number.The outer peripheral face of disclosed upright core at both ends has and the fixing slot part that engages with the claw of metal parts in Japanese Patent Publication communique 2001-45684 number.
But, and the stator core that consist of unshakable in one's determination from the combination split No. the 3681487th, Japan Patent (in disclosed stator core) is different, in the stator core that forms at crooked upright core, the crooked reaction force that notch part between each tooth section produces is assembled, thereby produces the restoring force that very large wanting makes the end separating of stator core.Therefore, even exist only the interconnection technique with disclosed split iron core in Japanese Patent Publication communique 2001-45684 number to be applied in the connection of upright core, can not guarantee enough to overcome the problem of the bonding strength (bed knife) of this crooked reaction force.
For this problem, considered to deepen to be formed on upright core outer peripheral face groove depth and strengthen from the countermeasures such as inclination angle of the slot part of axially seeing.In adding the structure of deep trouth, the problem that exists the magnetic circuit width (thickness radially) of part of the radially inner side that is positioned at slot part of upright core to narrow down.In the structure at the inclination angle of oversized slots, the problem of the insertion reduction when existence will be fixed claw with metal parts and insert to slot part, the assembleability deterioration of stator core.
The object of the present invention is to provide and a kind ofly do not produce that above-mentioned magnetic circuit sectional area reduces and problem that assembleability worsens and can fully guarantee the stator core of the bonding strength between the end of upright core.
Fig. 1 is the vertical view of the related stator core of embodiments of the present invention 100.This stator core 100 has body 3 unshakable in one's determination and link 4.Body 3 unshakable in one's determination is by forming upright core 2 looped-shaped bendings.The end that link 4 will consist of the upright core 2 of body 3 unshakable in one's determination connects and is fixing.
The circumferential both ends of outer peripheral face body 3(upright core 2 unshakable in one's determination) have respectively the 1st protuberance 18, the 2nd protuberance 19 and recess 25(with reference to Fig. 3).The 1st protuberance 18 and the 2nd protuberance 19 are given prominence to and are arranged in circumferentially to radial outside.Recess 25 is present between the 1st protuberance 18 and the 2nd protuberance 19.Recess 25 is to the radial outside opening.Each recess 25 clips the fillet 1 of the end face 3a of upright core 2 and end face 3b and is positioned at its both sides.Link 4 is inserted into two recesses 25, thereby connects the body unshakable in one's determination 3 at the two ends of upright core 2.
The 1st protuberance 18 and the 2nd protuberance 19 are outstanding from the circumferential elongated surfaces 26 of axial read fortune than circular-arc 16 to radial outside.The 1st protuberance 18 forms the radial outside end of end face 3a, the 3b of body 3 unshakable in one's determination.End face 3a, the 3b of body 3 unshakable in one's determination form smooth planar in the present embodiment.
The global shape of recess 25 during from axially the seeing of stator core 100 tilts with respect to fillet 1 towards the inboard from radial outside.Recess 25 from axially seeing of stator core 100 be to the direction left from fillet 1 protrude circular-arc.
That is, interior sidewall surface 27 is planar with respect to the circumferential circular arc that protrudes of fillet 1 side direction from axially seeing of stator core 100.It is planar that outer side surface 28 is the circular arc that circumferentially caves in respect to fillet 1 side direction from axially seeing of stator core 100.The curvature of interior sidewall surface 27, outer side surface 28 is identical.Distance between end face 3a, the 3b of interior sidewall surface 27 and body unshakable in one's determination 3 is preferably, in the distance of the radially inner side end of interior sidewall surface 27 than little in the distance of radial outside end.That is, with reference to Fig. 3 A, preferably satisfy the relation of d1＜d2, d3＜d4.Diapire face 29 is along with from interior sidewall surface 27 wall 28 and tilting to stator inboard (radially inner side) toward the outer side.
As shown in Figure 4, link 4 forms C word shape from axially seeing of stator core 100.In more detail, link 4 has the body 30 of connection and a pair of claw 31.From axially seeing stator core 100, the fillet 1 between end face 3a, the 3b of connection body 30 leaps body 3 unshakable in one's determination.Link 4 forms the tabular of the outer peripheral face that covers body 3 unshakable in one's determination.Claw 31 is wholely set respectively at circumferential both ends 30a, the 30a of stator that connects body 30.A pair of claw 31 disposes in that stator is circumferential oppositely. Side 32 and 33 form respectively can with the interior sidewall surface 27 of recess 25 contact with outer side surface 28 crooked planar.Front end face 34 connects inner side surface 32 and the outer lateral side 33 of claw 31.Front end face 34 has the inclined plane that can contact with the diapire face 29 of recess 25.And front end face 34 tilts to stator inboard (radially inner side) toward the outer side from the inboard of two claws 31.
Next, with reference to Fig. 5 the manufacture method of the stator 41 of use stator core 100 is described.This manufacture method comprise blank operation, lamination operation, coil installation procedure, bending operation and connection operation be connectedThis manufacture method is carried out according to the order of blank operation, lamination operation, coil installation procedure, bending operation, connection operation.
In blank operation, shown in Fig. 5 A, from band steel 35(electromagnetic steel plate) stamping-out goes out the thin slice 5 identical shaped with upright core 2.The action of this stamping-out is carried out as one group take two row upright cores 2.Upright core 2 stamping-outs are the shape of another row tooth section 12 of configuration between the adjacent tooth section 12 of row.Thus, realized the raising of the rate of finished products of material.In addition, in the present embodiment, at blank operation, carry out stamping-out according to the row shape that has 45 ° angle with respect to the carriage direction (direction shown in the arrow A) with steel 35, but also can carry out stamping-out according to the row shape with the carriage direction quadrature.In addition, the angle from steel 35 stamping-out tooth section 12 time is 45 degree in the present embodiment, but is not limited to whole 45 degree.For example, preferably, consider tooth section 12 length direction length dimension and with the relation between the width dimensions of steel 35, the angle of tooth section 12 is made as the high angle of rate of finished products.
In the lamination operation, form upright core 2(with reference to Fig. 5 B by a plurality of thin slices 5 of lamination).In the coil installation procedure, cover with insulant 36 (with reference to Fig. 5 C) after each tooth sections 12 of upright cores 2, at the 12 coiling coil 37(of tooth section with reference to Fig. 5 D).In bending operation, the upright core 2 that will coil 37 be installed in tooth section 12 is bent to form towards the direction of the arrow B of Fig. 5 and is ring-type.The tooth section 12 of the upright core 2 after being bent is outstanding to radially inner side.
In connecting operation, make crooked upright core 2(body 3 unshakable in one's determination) the contacted state of end face 3a, 3b under, a pair of claw 31 with link 4 is pressed into recess 25(with reference to Fig. 5 E respectively).Like this, finish stator 41(with reference to Fig. 5 F by the end face that connects body 3 unshakable in one's determination with link 4).
The stator 41 of finishing for example is assembled in moulding motor 50.Moulding motor 50 has stator 41, rotor 42 and shell 43 as shown in Figure 6.Rotor 42 is positioned at the inboard of stator 41.Shell 43 is for there being the round-ended cylinder shape.Stator 41 is covered and is accommodated in the shell 43 by moulded resin.The front end face of the inner peripheral surface 57(tooth section 12 of stator 41) expose, the part except inner peripheral surface 57 of stator 41 is covered by moulded resin.
In stator 41 and shell 43 molded and shaped, as shown in Figure 7, use the injection moulding machine with fixed mould 51 and moveable die 52.Specifically, at first, at the plug 53 that is arranged at fixed mould 51 stator 41 is installed.At this moment, the front end face 57 of tooth section 12 contacts (with reference to Fig. 7 A) with the outer peripheral face of plug 53.Next, after stator 41 is installed on plug 53, make moveable die 52 near fixed mould 51 to carry out locked mode.Thus, stator 41 is accommodated in the die cavity 54 interior (with reference to Fig. 7 B) between the mould 51,52.After locked mode finishes, from the inlet 55 that is formed on mould 51,52 mating surface to die cavity 54 interior injection moulding molten resins, make resin solidification.Resin in the die cavity 54 is when solidifying and stator 41 combinations.The resin that is combined in stator 41 is shell 43.Behind the resin solidification in the die cavity 54, open mould (moveable die 52 is left from fixed mould 51), the molded stator 68(that will be comprised of stator 41 and shell 43 is with reference to Fig. 7 C) from fixed mould 51 taking-ups.Can finish moulding motor 50(with reference to Fig. 6 at parts such as molded stator 68 assemble rotor 42 and carriages).
When moulding motor 50 drives, obtain rotation torque by the magnetic fields between the magnetic field of the permanent magnet 56 of magnetic field that tooth section 12 produces and rotor 42 when coil 37 current flowing, thereby rotor 42 rotates.
Shown in the arrow of Fig. 6, the magnetic flux that tooth section 12 produces passes rear of core 11 from the 12a of tooth section towards the adjacent 12b of tooth section and flows.In the motor 50 of execution mode 1, can fully guarantee the path by the magnetic flux between tooth section.By guaranteeing the path of magnetic flux, the magnetic flux that passes tooth section 12 increases.Increase if pass the magnetic flux of tooth section 12, the back electromotive force that then produces at coil 37 uprises.Because back electromotive force uprises, thereby obtains large rotation torque, the performance of motor improves.
At this, shown in Fig. 3 B, when the outer peripheral face from body 3 unshakable in one's determination is formed with recess 25 to radially inner side, exist magnetic circuit width W 1 to diminish, can not fully guarantee the problem of the magnetic circuit sectional area of rear of core 11.Particularly form in the stator core 100 of body 3 unshakable in one's determination each notch part 13(bend 14 unshakable in one's determination at crooked upright core 2) crooked reaction force assemble, produce the large restoring force towards the end face 3a that makes body 3 unshakable in one's determination, direction that 3b leaves mutually.Therefore, the link 4 connection masterpiece that need to guarantee to suppress the restoring force of stator core 100 is the connection power to body 3 unshakable in one's determination.For this reason, the degree of depth of considering for example to deepen recess 25 is with the method for the adhesion that improves 31 of recess 25 and claws.But this moment, the magnetic circuit width W 1 narrowed down more, the magnetic circuit sectional area guarantee difficult.In addition, magnetic circuit width W 1 is the radial thickness of the part of the radially inner side that is positioned at recess 25 of rear of core 11.
To this, in above-mentioned execution mode 1, have respectively protuberance 18,19 at the circumferential both ends of the outer peripheral face of body 3 unshakable in one's determination, between protuberance 18 and protuberance 19, have recess 25.By this structure, when can enough guaranteeing the degree of depth of recess 25, thereby can guarantee that large magnetic circuit width W 1 fully guarantees the magnetic circuit sectional area deeply.Therefore, need not for example to enlarge in order to ensure the magnetic circuit sectional area tiltangleθ 1(when axially seeing recess 25 with reference to Fig. 3 A) enlarge magnetic circuit width W 1.Therefore not making link 4(claw 31) workability when being inserted into recess 25 reduces and just can improve motor performance.
And, in above-mentioned execution mode 1, by consisting of link 4 with resin material, compare with situation about consisting of with metal material, can lower the magnetic loss of motor 50.This be because: at link 4 during for metal material, because magnetic flux is to the link 4 mobile magnetic losses that produce.In execution mode 1, by forming link 4 with resin material, magnetic flux is difficult to flow through link 4, therefore can lower magnetic loss.
At this, the coefficient of elasticity that consists of the resin material of link 4 is starkly lower than the coefficient of elasticity as the iron material of protuberance 18,19 constituent material.Therefore, when link 4 is installed on body 3 unshakable in one's determination, a pair of claw 31 of link 4 not be fastened on therebetween a pair of the 1st protuberance 18 and adapt and want mutual expansion.Therefore, if the depth as shallow of recess 25, then can owing to a pair of claw 31(with reference to Fig. 4) power that will expand and so that claw 31 simply break away from from recess 25.To this, in above-mentioned execution mode 1, have protuberance 18,19 by the position at adjacency recess 25, can guarantee deeper the degree of depth of recess 25.Thus, even in the situation that consists of link 4 with resin material, also can make the claw 31 of link 4 be fastened on reliably the recess 25 of body 3 unshakable in one's determination, prevent that claw 31 simply breaks away from from recess 25.
And in above-mentioned execution mode 1, the interior sidewall surface 27 of recess 25 and outer side surface 28 form from axially seeing to the circular arc of the direction protrusion that leaves from fillet 1 planar.Thus, can be easily the claw 31 of link 4 be inserted into recess 25.
Fig. 8 is the vertical view that has used the stator 41 of the related stator core 100 of embodiments of the present invention 2.The number of the upright core 2 of the stator core 100 that this execution mode 2 is related is different from above-mentioned execution mode 1.In addition, about the additional same-sign of the inscape identical in fact with Fig. 1, suitably description is omitted.
In present embodiment 2, body 3 unshakable in one's determination has and bends to two circular-arc upright cores 2.That is, execution mode 2 related stator cores 100 have 2 upright cores 2, and execution mode 1 related stator core 100 has 1 upright core 2.Stator core 100 has body 3 unshakable in one's determination and link 4a, 4b.Link 4a, 4b connect end face 3a, the 3b of body 3 unshakable in one's determination.
At this, in the present embodiment, make below the link 4a(among link 4a, the 4b, be called the 1st link) shape different from the shape of the link 4 of execution mode 1.That is, be called the 2nd link below another link 4b() connection body 30 circumferentially radial thickness is formed immobilize (with reference to Fig. 4) at stator in the same manner with execution mode 1.Relative therewith, the connection body 30 of the 1st link 4a forms the radial thickness thin (with reference to Fig. 9) of radial thickness ratio at both ends 30a, 30a place at the circumferential central portion 30b place of stator.In addition, the radial thickness that so-called " thickness immobilizes " is not limited to connect body 30 is completely fixed constant structure, also comprises the shape that has foozle or have wittingly a plurality of thickness.
The manufacture method of the stator of execution mode 2 is described with reference to Figure 10.In addition because the related manufacture method of execution mode 2 is identical with described execution mode 1 except making up two upright core 2 this point, so suitably omit to the explanation of the content of execution mode 1 repetition.
That is, in blank operation, from going out the thin plate 5(that consisted of by six rear of core sheets 15 with steel 35 stamping-outs with reference to Figure 10 A).In the lamination operation, lamination forms two groups of upright cores 2 (with reference to Figure 10 B) by the thin plate 5 that six rear of core sheets 15 consist of.In the coil installation procedure, about each group of two groups of upright cores 2, at each 12 installing insulating things, 36 rear coiling coil 37(of tooth section with reference to Figure 10 C and Figure 10 D).In bending operation, looped-shaped bending (with reference to Figure 10 D) after two groups of upright cores, the 2 banded connections of the coil 37 of will having reeled with the 1st link 4a.In connecting operation, connect the end (with reference to Figure 10 E) of crooked upright core 2 with the 2nd link 4b.Like this, finish stator 41(with reference to Figure 10 F).
In execution mode 2, make up two upright cores 2 and form body 3 unshakable in one's determination.Thus, can be formed on by six rear of core sheets 15 thin plate 5 of stamping-out in the blank operation.Therefore, for example, even in can't the situation of 12 rear of core sheets 15 of a stamping-out because the die size of existing forcing press is little, also can continue to use mould under the situation of at least six rear of core sheets 15 of stamping-out by existing mould.Thus, thus can suppress new equipment investment lowers product cost.
And in execution mode 2, the connection body 30 of the 1st link 4a forms at the radial thickness ratio at the circumferential central portion 30b place of stator thin at the radial thickness at both ends 30a place.Thus, can make the flexural rigidity (flexural rigidity of direction shown in the arrow of Fig. 9) of the 1st link 4a lower than the flexural rigidity of the 2nd link 4b.That is, the central portion 30b of the 1st link 4a compares with the central portion (with reference to Fig. 4) of the 2nd link 4b, can be crooked with weak power.Therefore, in bending operation, when making two upright cores, 2 bending that connects into band shape, can do one's utmost to lower the crooked reaction force that produces as fulcrum take the central portion of the 1st link 4a at fillet 1.Thus, can carry out easily this buckling work.
Other execution modes
Structure of the present invention is not limited to execution mode 1 and 2, also comprises various structures in addition.
That is, in described each execution mode and variation, represented to utilize at moulding motor 50 example of stator core 100, but be not limited thereto.For example, as shown in figure 11, can be used in the motor 50 that the stator that is pressed into stator 41 at shell 43 is pressed into type.At this moment, the mountain type crowning 17 of being located at the outer peripheral face of body 3 unshakable in one's determination is got final product as the face that the is pressed into utilization with respect to shell 43.Specifically, in the example of Figure 11, a plurality of recessed grooves 61 circumferentially equally spaced are formed on the inner peripheral surface of shell 43.And, stator 41 being pressed under the state of shell 43, the longitudinal end of crowning 17 contacts with the bottom surface point of recessed groove 61.Recessed groove 61a in a plurality of recessed grooves 61 forms for fear of interfering with link 4 that to compare radial depth dark with other recessed groove 61.When stator 41 is pressed into shell 43, in the position of the position that makes the link 4 that is assembled in stator 41 and recessed groove 61a from axially seeing under the state that is consistent, with stator 41 from axially being pushed into shell 43.
And in the respective embodiments described above, the circumferential end faces 3a of body 3 unshakable in one's determination, 3b form smooth planar, but are not limited thereto.End face 3a, 3b also can form the 1st holding section 62 at the circumferential end face 3a of body 3 unshakable in one's determination for example as shown in figure 12, form the 2nd holding section 63 that engages with the 1st holding section 62 at the circumferential end faces 3b of body 3 unshakable in one's determination.Thus, can easily carry out the radial position alignment of end face 3a and the end face 3b of body 3 unshakable in one's determination.In Figure 12 A, represented such example: use from seeing that axially the taper protuberance 65 that is trapezoidal consists of the 1st holding section 62, use from seeing that axially the tapered recess 64 that is trapezoidal consists of the 2nd holding section 63.And, in Figure 12 B, represented to consist of the example of the 1st holding section 62 and the 2nd holding section 63 with step recess 66 and step protuberance 67, but be not limited thereto.
And, in the respective embodiments described above, the interior sidewall surface 27 of recess 25 and outer side surface 28 are formed the curved surface shape that protrudes to a side opposite with fillet 1 side, but are not limited thereto.For example, as shown in FIG. 13A, also interior sidewall surface 27, outer side surface 28 can be formed the inclined plane of flat condition.And, shown in Figure 13 B, also can make the radially inner side end of interior sidewall surface 27 be " コ " word shape depression to fillet 1 side.
And, in the respective embodiments described above, plug 53 is located at fixed mould 51, but is not limited thereto, for example also can be arranged on moveable die 52.
And, in the above-described embodiment, consist of link 4 with resin material, but be not limited thereto, for example also the available metal material consists of.
And, in above-mentioned execution mode 2, form the body unshakable in one's determination 3 of stator core 100 by two upright cores 2, but be not limited thereto, also can form by the upright core 2 more than three.
And, in the above-described embodiment, use the motor of 12 grooves, 12 utmost points to describe, but be not limited thereto, also can use in various occasions such as 6 grooves, 8 utmost points or 24 grooves, 12 utmost points.
And, comprise in the present invention the combination in any of described each execution mode and each variation.
Motor and manufacture method thereof that the present invention can be applicable to stator core and has this stator core.Particularly, the present invention can be applicable to utilize link to connect the stator core that forms by crooked upright core and with its end.
Claims (14)
1. a stator core is characterized in that, this stator core comprises:
Body unshakable in one's determination, it forms ring-type take the notch part that is formed between each tooth section as the crooked upright core of fulcrum, and described upright core is by making a plurality of tooth section be from the rear of core of band shape that pectination is outstanding to be consisted of; With
Link, its circumferential both ends for the upright core that will consist of described body unshakable in one's determination couple together,
At the circumferential both ends of the outer peripheral face of the upright core that consists of described body unshakable in one's determination, be formed with respectively outstanding to radial outside and be arranged in circumferential two protuberances and be formed on therebetween by described two protuberances and to the recess of radial outside opening,
The fillet that described link is crossed between the both ends of described upright core is configured, and by being connected described end with each recess engaging of the outer peripheral face that is formed at described both ends.
2. stator core according to claim 1, wherein,
Described link is resin material.
3. stator core according to claim 1 and 2, wherein,
Described each recess from axially seeing of stator core form to a side opposite with described fillet side protrude circular-arc.
4. stator core according to claim 1 and 2, wherein,
Distance between the interior sidewall surface of leaning on described fillet side of described each recess and the end face that is positioned at described fillet of described upright core is little at the radial outside end at the radially inner side end ratio of described interior sidewall surface.
5. stator core according to claim 3, wherein,
Distance between the interior sidewall surface of leaning on described fillet side of described each recess and the end face that is positioned at described fillet of described upright core is little at the radial outside end at the radially inner side end ratio of described interior sidewall surface.
6. a stator core is characterized in that, this stator core comprises:
Body unshakable in one's determination, it forms ring-type take the notch part that is formed between each tooth section as the crooked upright core of fulcrum, and described upright core is by making a plurality of tooth section be from the rear of core of band shape that pectination is outstanding to be consisted of; With
Link, its circumferential both ends for the upright core that will consist of described body unshakable in one's determination couple together,
At the circumferential both ends of the outer peripheral face of the upright core that consists of described body unshakable in one's determination, be formed with respectively outstanding to radial outside and be arranged in circumferential two protuberances and be formed on therebetween by described two protuberances and to the recess of radial outside opening,
The fillet that described link is crossed between the both ends of described upright core is configured, and by being connected described end with each recess engaging of the outer peripheral face that is formed at described both ends,
Described body unshakable in one's determination consists of by bending to circular-arc a plurality of upright cores,
At the circumferential both ends of the outer peripheral face of each upright core that consists of described body unshakable in one's determination, be formed with respectively outstanding to radial outside and be arranged in circumferential two protuberances and be formed on therebetween by described two protuberances and to the recess of radial outside opening,
Described link is provided with a plurality of,
The fillet that described each link is crossed between the end of the adjacent straight iron core in the described body unshakable in one's determination is configured, and by being connected described end with each recess engaging of the outer peripheral face that is formed at described each end.
7. stator core according to claim 6, wherein,
Described link is resin material.
8. according to claim 6 or 7 described stator cores, wherein,
Described each recess from axially seeing of stator core form to a side opposite with described fillet side protrude circular-arc.
9. according to claim 6 or 7 described stator cores, wherein,
Distance between the interior sidewall surface of leaning on described fillet side of described each recess and the end face that is positioned at described fillet of described upright core is little at the radial outside end at the radially inner side end ratio of described interior sidewall surface.
10. according to claim 6 or 7 described stator cores, wherein,
It is low that other links except a link in described a plurality of link and a described link are compared flexural rigidity.
11. stator core according to claim 10, wherein,
Described a plurality of link has:
Connect body, its from stator core axially, cross over described body unshakable in one's determination each upright core fillet and cover the outer circumferential side of described body unshakable in one's determination; With
A pair of claw, it is outstanding respectively from circumferential both ends of described connection body, and engages with the recess that the fillet that clips each upright core is positioned at the fillet both sides respectively,
The connection body of described other links from stator core axially, this radial thickness of circumferential central portion that connects body is thinner than the radial thickness at circumferential both ends.
12. according to claim 1 or 6 described stator cores, wherein,
Circumferential end face at the upright core of described body unshakable in one's determination is formed with the 1st holding section,
Circumferential other end at described upright core is formed with the 2nd holding section, and the 2nd holding section has the shape that can engage with described the 1st holding section.
13. a motor is characterized in that, this motor has claim 1 or 6 described stator cores, and this motor comprises:
Stator, it forms by each the tooth section coiling coil in described stator core;
Rotor, it is configured in the radially inner side of described stator; With
Shell, it is accommodated in described stator inner and by molded and shaped and one is fixed described stator, and it is formed from a resin.
14. the manufacture method of a motor is characterized in that, described motor has used upright core, and described upright core is by making a plurality of tooth section be from the rear of core of band shape that pectination is outstanding to be formed,
The manufacture method of described motor comprises:
Both ends at the length direction of the face of the side opposite with a described tooth section outstanding side of described rear of core, form respectively with the length direction quadrature of described rear of core and be arranged in two protuberances of this length direction, form thus to the operation of the recess of the outer openings of the direction of described length direction quadrature;
The operation of coiling coil cover each tooth section of described upright core with insulant after;
Behind described each tooth section coiling coil, to be formed on notch part between each tooth section as the operation of the described upright core looped-shaped bending of naming a person for a particular job;
The both ends of the upright core after making described bending make link engage with each recess of the outer peripheral face that is formed at these both ends and finish the operation of stator under the state of circumferential abutment;
The described stator of finishing is arranged to the operation of the state that the outer front end face that inserts in the tooth section of the plug of being located at a mould in fixed mould and the moveable die and this stator contacts with the outer peripheral face of this plug;
After described stator is arranged at plug, by fixed mould and moveable die are carried out locked mode and stator is contained in operation in the die cavity between these two moulds; With
By casting resin in described die cavity and make its curing and the operation of one-body molded described stator and resin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-151875 | 2011-07-08 | ||
| JP2011151875A JP5938156B2 (en) | 2011-07-08 | 2011-07-08 | Stator core, motor including the stator core, and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102868239A true CN102868239A (en) | 2013-01-09 |
| CN102868239B CN102868239B (en) | 2017-04-12 |
Family
ID=47446911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210236080.1A Expired - Fee Related CN102868239B (en) | 2011-07-08 | 2012-07-06 | Stator core, motor and method for manufacturing motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5938156B2 (en) |
| KR (1) | KR20130006337A (en) |
| CN (1) | CN102868239B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734405A (en) * | 2013-12-23 | 2015-06-24 | 罗伯特·博世有限公司 | Stator provided with injection molding packaging body and motor provided with stator |
| CN109075681A (en) * | 2016-04-21 | 2018-12-21 | 三菱电机株式会社 | Motor and air conditioner |
| CN109417316A (en) * | 2016-07-14 | 2019-03-01 | 三菱电机株式会社 | Stator, motor, pressure fan, electric dust collector and method for winding |
| CN110504765A (en) * | 2019-08-07 | 2019-11-26 | 珠海凯邦电机制造有限公司 | Stator punching sheet, stator core, stator, motor and air conditioning device |
| CN112640259A (en) * | 2018-08-24 | 2021-04-09 | 美蓓亚三美株式会社 | Motor and method for manufacturing motor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160116210A (en) | 2015-03-27 | 2016-10-07 | 성림첨단산업(주) | Folding type stator core |
| KR102510162B1 (en) * | 2015-08-21 | 2023-03-15 | 엘지이노텍 주식회사 | Stator and motor including the same |
| JP2018166352A (en) * | 2017-03-28 | 2018-10-25 | Ntn株式会社 | Electric motor and its manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001045684A (en) * | 1999-07-30 | 2001-02-16 | Hitachi Ltd | Manufacturing method of electric motor stator core |
| JP2005130620A (en) * | 2003-10-23 | 2005-05-19 | Nidec Shibaura Corp | Stator core |
| CN2747766Y (en) * | 2004-10-25 | 2005-12-21 | 浙江卧龙科技股份有限公司 | Fixing buckle split type plastic packaging motor stator core |
| US20100107401A1 (en) * | 2008-11-06 | 2010-05-06 | Nidec Corporation | Method of manufacturing motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2629532A1 (en) * | 1975-07-03 | 1977-01-27 | Sev Alternateurs | METHOD AND DEVICE FOR A STATOR OR ROTOR OF AN ELECTRIC ROTATING MACHINE |
| JPS58212337A (en) * | 1982-06-01 | 1983-12-10 | Matsushita Electric Ind Co Ltd | Stator for motor |
| JPH0937491A (en) * | 1995-07-24 | 1997-02-07 | Hitachi Ltd | Induction motor |
| JPH0998545A (en) * | 1995-09-29 | 1997-04-08 | Mitsubishi Electric Corp | Motor-driven blower and its manufacture |
| JP4477892B2 (en) * | 2004-02-12 | 2010-06-09 | 日本電産シバウラ株式会社 | Stator core and stator |
| ES2354263T3 (en) * | 2005-08-30 | 2011-03-11 | Askoll Holding S.R.L. | 2-PHASE SYNCHRONOUS ELECTRIC MOTOR OF PERMANENT MAGNETS WITH MECHANICAL START FOR WASHERS AND SIMILAR APPLIANCES, IN PARTICULAR FOR WASHING PUMPS. |
| JP2007068324A (en) * | 2005-08-31 | 2007-03-15 | Nippon Densan Corp | Armature, and brushless motor mounted with armature |
| JP2007181359A (en) * | 2005-12-28 | 2007-07-12 | Tamagawa Seiki Co Ltd | Joining method of ring type stator using split cores, and ring type stator structure |
-
2011
- 2011-07-08 JP JP2011151875A patent/JP5938156B2/en not_active Expired - Fee Related
-
2012
- 2012-07-05 KR KR1020120073256A patent/KR20130006337A/en not_active Application Discontinuation
- 2012-07-06 CN CN201210236080.1A patent/CN102868239B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001045684A (en) * | 1999-07-30 | 2001-02-16 | Hitachi Ltd | Manufacturing method of electric motor stator core |
| JP2005130620A (en) * | 2003-10-23 | 2005-05-19 | Nidec Shibaura Corp | Stator core |
| CN2747766Y (en) * | 2004-10-25 | 2005-12-21 | 浙江卧龙科技股份有限公司 | Fixing buckle split type plastic packaging motor stator core |
| US20100107401A1 (en) * | 2008-11-06 | 2010-05-06 | Nidec Corporation | Method of manufacturing motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734405A (en) * | 2013-12-23 | 2015-06-24 | 罗伯特·博世有限公司 | Stator provided with injection molding packaging body and motor provided with stator |
| CN109075681A (en) * | 2016-04-21 | 2018-12-21 | 三菱电机株式会社 | Motor and air conditioner |
| CN109417316A (en) * | 2016-07-14 | 2019-03-01 | 三菱电机株式会社 | Stator, motor, pressure fan, electric dust collector and method for winding |
| CN112640259A (en) * | 2018-08-24 | 2021-04-09 | 美蓓亚三美株式会社 | Motor and method for manufacturing motor |
| US11996735B2 (en) | 2018-08-24 | 2024-05-28 | Minebea Mitsumi Inc. | Motor |
| CN110504765A (en) * | 2019-08-07 | 2019-11-26 | 珠海凯邦电机制造有限公司 | Stator punching sheet, stator core, stator, motor and air conditioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130006337A (en) | 2013-01-16 |
| CN102868239B (en) | 2017-04-12 |
| JP2013021784A (en) | 2013-01-31 |
| JP5938156B2 (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102868239A (en) | Stator core, motor and method for manufacturing motor | |
| EP2026448B1 (en) | Split core and manufacturing method of the same, and stator core | |
| JP5129810B2 (en) | Laminated iron core and method for manufacturing the same | |
| US10164487B2 (en) | Motor, method for manufacturing magnetic plate, and method for manufacturing stator | |
| JP2007104812A (en) | Distribution member | |
| EP1241769B1 (en) | Magnetic core | |
| EP2768119B1 (en) | Method for producing a laminated rotor core | |
| US8970086B2 (en) | Stator core of rotor | |
| JP5212129B2 (en) | Manufacturing method of laminated core and manufacturing jig thereof | |
| KR102352027B1 (en) | Stator of an electric machine | |
| JP4611272B2 (en) | Laminated iron core and method for manufacturing the same | |
| CN102082470A (en) | Laminated stator core | |
| JP5237988B2 (en) | Laminated iron core and method for manufacturing the same | |
| JP5190318B2 (en) | Permanent magnet type laminated iron core and manufacturing method thereof | |
| CN104362776A (en) | Prefabricated stamped sheet, stator and stamped sheet thereof | |
| JP5717973B2 (en) | Laminated iron core and method for manufacturing the same | |
| JP2013080853A (en) | Laminated iron core and method of manufacturing the same | |
| JP5358517B2 (en) | Manufacturing method of laminated iron core | |
| CN103825377A (en) | Stator | |
| JP5659770B2 (en) | Rotating electric machine core and method of manufacturing rotating electric machine core | |
| CN111900810A (en) | Axial magnetic field motor and stator structure and stator core structure thereof | |
| CN103475170A (en) | Manufacturing method of iron core, iron core structure and motor | |
| JP2006025533A (en) | Caulking structure of laminated iron core | |
| CN203859599U (en) | Rotating motor for vehicle | |
| CA2587992C (en) | Laminations for electric motors and a method of manufacturing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20190706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |