CN201576966U - Laminated stator - Google Patents
Laminated stator Download PDFInfo
- Publication number
- CN201576966U CN201576966U CN2009202934104U CN200920293410U CN201576966U CN 201576966 U CN201576966 U CN 201576966U CN 2009202934104 U CN2009202934104 U CN 2009202934104U CN 200920293410 U CN200920293410 U CN 200920293410U CN 201576966 U CN201576966 U CN 201576966U
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- lamination
- tooth
- stator
- teeth
- ring portion
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Abstract
The utility model provides a laminated stator used for a motor, which is formed by laminating a plurality of lamination sheets, wherein each lamination sheet comprises a ring part with a central axis and a plurality of teeth arranged at intervals with equal angular distances along the circumference of the ring part; all the lamination sheets have equal teeth; the ring parts of the plurality of lamination sheets are laminated in the axial direction; the laminated stator is characterized in that in the stator, the teeth of the plurality of lamination sheets are arranged in a staggered way along the circumference of the ring part, so that one teeth of other lamination sheets are arranged between the adjacent teeth of each lamination sheet; and all the teeth, belonging to the same phase, of the stator are wound by one continuous winding.
Description
Technical field
The utility model relates in general to a kind of stacked stator that is used for motor.
Background technology
Referring to shown in Figure 10, core structure in traditional unitary stator that is used for brushless permanent magnet motor, stator core in be formed centrally circular hole, on outer circumference surface, form a plurality of radial wire casings, at the inside of wire casing winding around, between two wire casings, be formed with stator tooth, the free end of stator tooth is the cambered surface with certain radian, the end cambered surface of all stator tooths limits an annular side face concentric with described circular hole, wire casing has a slit on the side face of stator tooth free end place, for being used to guide the coiling pin of winding wire therefrom to pass when winding the line.
Because the volume that the coiling pin is intrinsic, described narrow meeting can not be designed very narrowly, still, can not design widely, otherwise can reduce the copper factor of wire casing significantly.Therefore, traditional unitary stator structure exists machinery coiling difficulty or copper factor is low or stock utilization is low problem.
Traditional sectional type stator structure, though can realize higher copper factor,, the packaging technology complexity after the coiling of sectional type stator structure, wiring the end of a thread of winding is many.
At the problem of traditional stator structure, multiple improvement structure has been proposed, for example U.S. Pat 6,583,530 B2, US 6,404,095 B1, US 6,400, disclosed stator structure among 059 B1, wherein each tooth winds the line individually, and the tooth that will have coiling afterwards is connected to the stator yoke portion of segmentation, and the stator yoke portion with segmentation is assembled into complete stator by interlocking structure then.As can be seen, the assembling procedure of this stator structure is various, only is suitable for the few situation of the stator number of teeth.
US 6,781, and 278 B2 also disclose a kind of stator structure, and the gear ring that wherein is tied with winding is fixed on the stator body by means of alignment pin.Because gear ring all teeth when stator shaft orientation is installed need be fitted on the groove structure corresponding on the stator body, therefore, it is big that this stator structure is assembled difficulty.
In US2009/0183357A1 and the disclosed stator structure of US7538467B2, two stator yoke component models connect the location in the axial direction, form fit by shank and boots portion constitutes a complete stator, and make whole circumferentially on the opening of wire casing become same angle tilt with respect to stator shaft orientation.For this stator structure, though can reduce the teeth groove moment of motor,, assembly precision requires high, and copper factor is difficult to increase substantially, and in addition, needs the extra clamping and fixing device that is used for preventing the module circumferential misalignment when coiling.
In the stator structure of describing among WO2004/098023A1 and the WO2006/018346A1, be close to vertically by two modules as the master unit of stator and be provided with and form, wherein the shank of each module width vertically equates substantially that with the axial width of module each shank winds the line separately.This stator structure has problems such as copper factor is low, coiling the end of a thread is many.
The utility model is intended to overcome one or more in the problems referred to above.
The utility model content
The stator structure that the purpose of this utility model is to provide that a kind of convenience that winds the line, copper factor height, coiling the end of a thread are few, the reduction of the stator assembling degree of eccentricity, vibration and noise reduce.
Above-mentioned purpose of the present utility model is to realize by so stacked stator: this stator is overrided to form by a plurality of laminations, each lamination comprise ring portion with a central axis and along ring portion circumferentially to equate that angle is apart from a plurality of teeth that are provided with at interval, the number of teeth of each lamination equates, the ring portion of described a plurality of laminations is stacked in the axial direction, it is characterized in that, in this stator, the tooth of described a plurality of laminations is along a tooth that has each other lamination between circumferentially being crisscross arranged of ring portion makes the adjacent teeth of each lamination, and all teeth that belong to same phase of this stator are twined by a continuous coiling.
According to stator structure of the present utility model, because before coiling that a plurality of laminations are coaxial fixing and make the certain axial spacing of lamination each interval, therefore, make that the space for coiling increases, coiling is convenient.In addition, on the basis that winds the line easily, can adopt a sufficiently long coiling around intact all teeth that belong to same phase, therefore, it is many to have overcome the wiring that winds the line in the prior art, the defective that joint is easily loosening, and can reduce the degree of eccentricity after the stator assembling, help reducing the vibration and the noise of motor.
In one embodiment, at the recess of the tooth root part of the tooth that is provided for holding other lamination on the ring portion of each lamination between the circumferential adjacent tooth at this lamination.By means of this recess, can advantageously before the described a plurality of laminations of pressing, make described a plurality of lamination in upwards alignment of week, make pressing working procedure successfully to finish.
Advantageously, the ring portion of the lamination at described tooth and its place is one-body molded.This integral formation method comprises molded and shaped or excision forming etc.Can reduce like this and make the needed operation of lamination.
Advantageously, described tooth is formed by stacking by identical shaped a plurality of gear pieces.In one embodiment, described a plurality of gear pieces can cut from existing unitary stator iron core finished product, stamping-out makes, and therefore, described a plurality of gear pieces are in aspect unanimities such as shape, material, sizes, and this helps the stator shaping of teeth.
Advantageously, described a plurality of gear piece is by sealed, riveted or the bonding superimposed connection that fixes each other.
Advantageously, described a plurality of gear piece is provided with by the alignment pin alignment.
Advantageously, described gear piece partly is provided with the location hole that is used to insert alignment pin at tooth root.For realizing the insulation of stator core and coiling, need do insulation to the tooth of each lamination or each lamination and handle.This insulation processing can comprise insulating case is installed on the described tooth, makes described tooth remove the tooth root part and tooth ends exceptionally is insulated the cover covering.When single tooth is formed by stacking by a plurality of gear pieces, the alignment pin of the described a plurality of gear pieces that can on insulating case, be provided for aliging.
In one embodiment, the quantity of described lamination is 2.
Described stator can be internal stator or external stator.
Description of drawings
Describe specific embodiment of the utility model with reference to the accompanying drawings in detail.To those skilled in the art, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 illustrates the stereogram of the thin slice that is used for stator of the present utility model;
Fig. 2 is the stereogram according to stator lasmination of the present utility model;
Fig. 3 is the stereogram of main part that is used for the seal of stator lasmination of the present utility model;
Fig. 4 is the schematic diagram of cap of the insulating case of the single insulating case device that is used for Fig. 3;
Fig. 5 is the stereogram through the stator lasmination of the present utility model of insulation processing;
Fig. 6 be lamination shown in Fig. 5 a tooth along the resulting sectional view of A-A;
Fig. 7 is the co-axially fixed schematic diagrames of a plurality of laminations;
Fig. 8 a-8e is the schematic diagram that winds the line in the assembling process;
Fig. 9 is the stator structure schematic diagram according to the utility model one embodiment; And
Figure 10 is the schematic diagram of unitary stator structure in the prior art.
Embodiment
Shown in Fig. 1 is repeatedly the traditional thin thin slice 10 of stator lasmination of thickness rate.This thin slice 10 have ring portion 11 and along the periphery of ring portion with etc. the gear piece 12 that is provided with of angle intervals.Gear piece 12 whole one-tenth T fonts radially have tooth root part 121, tooth body part 122 and increment part 123.Increment part 123 upwards has a cambered surface in week.The configuration of this gear piece 12 can prevent coiling slippage from the tooth.The increment of all teeth of whole thin slice 10 partly limits an imaginary periphery.Preferably, gear piece 12 is one with ring portion 11.As example, shown thin slice 10 has 12 gear pieces.Be provided with a location hole 13 at the tooth root position of each gear piece 12.Alternatively, be provided with a recess 14 at the central part between adjacent two teeth of described ring portion 11 (promptly predetermined hypodontia position), this recess is used to hold the tooth root part of other gear pieces.Can expect, shown thin slice 10 can obtain by such mode: will be similar to thin slice 10 size but having 24 is placed on the device that is used for stamping-out along the periphery of ring portion with the thin slice of the gear piece that waits the setting of angle intervals, tooth root zone punching at each gear piece obtains location hole 13, then every a gear piece ground stamping-out, at last, obtain thin slice shown in Figure 1 10.
As shown in Figure 2, the gear piece 12 ' that is punched down is stacked on the gear piece 12 of the thin slice 10 shown in Fig. 1 can obtain lamination 1.Connection between gear piece 12 ' and the gear piece 12 can realize by traditional methods of attachment such as bonding, riveted or interlocking structures.Complete independent stator tooth 15 of stacked formation of gear piece 12 ' and gear piece 12.Therefore, lamination 1 is made of ring portion 11 and tooth 15.The axial width of tooth 15 is greater than ring portion thickness.Certainly, stator tooth 15 also can be integrated, rather than forms by a plurality of gear pieces are stacked.It may occur to persons skilled in the art that described stator tooth 15 also can be integrated with the ring portion 11 of thin slice 10, for example,, perhaps be connected on the ring portion 11 of described thin slice 10 by interlocking structure by mold formed.In addition, gear piece 12 ' is consistent with the shape of gear piece 12, to keep the alignment of gear piece profile when piling up.
Fig. 3, Fig. 4 illustrate the seal 20 of each tooth 15 that is used for lamination 1 shown in Figure 2.Fig. 5 illustrates the stator lasmination of having installed behind the seal 20 of the present utility model.This seal 20 constitutes by the dish 21 that is used to make the insulation of lamination ring portion end face with along the insulating case 22 of the angle spacing setting such as circumferential of this dish 21.Central part between these dish 21 adjacent insulating cases 22 is in periphery and is provided with recess 211, be used for when fitting with the end face for the treatment of insulation processing of lamination and the recess 14 of thin slice 10 corresponding.This insulating case 22 by the recess 221 that limits the concave shaped space that is used to hold tooth 15 substantially and the uncovered cap 222 that is used to cover this recess form.The gear piece 12 that stacks gradually from bottom to top, 12 ' and described recess 221 between can be loose fit or tight fit, preferably, the relative both sides 2211 of described recess 221,2212 clamp gear piece, described cap 222 is fitted in the gear piece 12 ' that is stacked in the top and upward and with described recess 221 is fastened and connected, and forms the insulating case of hollow.The connected mode of the insulating case 22 that passes tooth 15 therein by routine is connected on the ring portion 11 of lamination 1 at these tooth 15 places.Respectively be provided with on the periphery that is used for being resisted against ring portion 11 to guarantee in ring portion relative both sides 2211,2212 and lamination 1 the 11 close ends of recess 221 at the process coiling of lamination coiling and the flange 241,242 of laminated insulation.In the embodiment shown, the bottom side 2213 of the recess 221 of a plurality of insulating cases 22 along circumferential arrangement is connected on the dish 21 or is one-body molded with this dish 21.When the lamination for the treatment of insulation processing is not that this dish 21 can omit when being used to form the end lamination of stator.
Fig. 4 illustrates the cap 222 of insulating case 22.This cap shape is consistent with the gear piece shape.This cap 222 is provided with alignment pin 23 in the position corresponding with the location hole 13 of gear piece 12.This alignment pin 23 is fixed on the side towards tooth 15 of cap 222 by the connected mode of routine.Can expect that alignment pin 23 also can be one-body molded with cap 222.A side that has alignment pin that makes cap 222 after in the recess 221 that tooth 15 is placed on insulating case 22 is to tooth 15 and alignment pin 23 is alignd with location hole 13 in the setting of tooth root portion, then insert alignment pin 23 in the described location hole 13 and described cap 222 is abutted on the upper surface of tooth 15, as shown in Figure 6, thus, make tooth 15 and treat and to insulate around the coiling on the tooth 15.In addition, this insulating case 22 can play the effect of being convenient to alignment assembling gear piece 12,12 '.Certainly, it may occur to persons skilled in the art that other the insulation processing that is used to make tooth and coiling insulation, for example tooth 15 treat coat insulating coating or be pasted with insulating paper with each surface that contacts that winds the line.In one embodiment, alignment pin also can be arranged on the bottom side 2213 of recess 221 of insulating case 22.
Be the assemble method that example is described stator of the present utility model with two superimposed formation one complete stators of lamination below.
At first, provide two identical in structure laminations 1 and lamination 1 '.Lamination 1 and lamination 1 ' are fitted together with seal 20 respectively.Afterwards, fix the lamination of handling through insulation 1,1 ', make that the coaxial side that is protruding with tooth fixing and two laminations of two laminations is relative, and two laminations 1, be separated with certain axial distance between between 1 ', as shown in Figure 7 by coiling anchor clamps (not shown).As can be seen from Figure 7, for making described two laminations coaxial,, be nested with about in the of 1 ' on a cylinder lamination 1.
Then, carry out winding process.Before coiling, with the classification of all teeth and be labeled as and belong to phase X, Y, Z (is example with the threephase stator).Referring to Fig. 8 a-8d, from lamination 1 one belongs to tooth 151 beginnings of X phase earlier, be wrapped in a sufficiently long coiling on the partial-length that radially extends of tooth 151 along clockwise direction, behind an intact fixing turn, coiling in the counterclockwise direction on the tooth 151 ' of the correspondence that arrives lamination 1 ', around behind a fixing turn, 2 teeth crossing lamination 1 ' are around to the tooth 152 of lamination 1, behind intact tooth 152, then twine the tooth 152 ' of lamination 1 ' ... so repeatedly, belong to the coiling that all is wound with scheduled volume on the tooth of same phase X until all of all laminations.In the process of coiling, the cross-line partial L in the coiling be arranged in as far as possible lamination 1 through lower surface that insulation is handled or lamination 1 ' through the upper surface that insulation is handled, to guarantee not exist when lamination 1 and the lamination 1 ' pressing interference of cross-line partial L.Then, the tooth that belongs to phase Y or Z is similarly wound the line respectively.Because in when coiling, it is many that the interval between two laminations has increased twice than the space between the tooth of big a lot of and each lamination of traditional winding space, therefore, and according to the traditional stator structure coiling of the winding ratio of stator structure of the present utility model conveniently.In addition, be the mode of continuous cabling owing to what in the coiling process, take, therefore, winding joint significantly reduces.
Then, if the lamination around intact line is that tooth-tooth is relative, then will be around one of lamination that finishes line along predetermined direction rotating certain angle, the projection of each tooth that makes lamination on plane, lamination place down drops on preposition between adjacent two teeth of lamination down, for example make the recesses align between adjacent two teeth on the ring portion of the root portion of each tooth of lamination and following lamination, shown in Fig. 8 d.
It may occur to persons skilled in the art that, also can before coiling, each lamination be fixed on predetermined angular position, make the hypodontia position of each lamination aim in the axial direction with the corresponding tooth of other lamination.
Shown in Fig. 8 e, by the pressing instrument lamination 1 and lamination 1 ' are snapped together, make stacked and two laminations of the ring portion of two laminations tooth ring portion circumferentially on staggered, promptly form a complete stator structure.For making stator attractive in appearance, (not shown) can be tightened up and stopped up to the cross-line partial L on the stator faces.
At last, take off stator 30 after the assembling from the coiling anchor clamps, as shown in Figure 9.
Though only form stator in the example that above provides by two laminations,, it may occur to persons skilled in the art that stator of the present utility model is not limited to by two laminations and is formed by stacking, for example, can by 3,4 or more a plurality of lamination be formed by stacking.
For example, when setting the period of the day from 11 p.m. to 1 a.m by three stack of laminations, the thickness of the tooth of each lamination is roughly three times of lamination ring portion thickness h, wherein, the length that the tooth of top lamination extends downwards from the ring portion of the lamination at its place is 2h, the length that the tooth of middle lamination extends respectively up and down from the ring portion of the lamination at its place is h, and the tooth of bottom lamination is 2h from the upwardly extending length of the ring portion of the lamination at its place.At this moment, be reserved with two hypodontia positions between the adjacent teeth of each lamination.According to the number of teeth on the lamination winding mode is set, does not have the cross-line part on the end face of lamination in the middle of making, and all teeth that will belong to same phase with a coiling are around finishing.After belonging to out of phase all teeth coiling and finishing, these three laminations are superimposed, can obtain the stator that transverse tooth thickness is 3h.
Under the situation that is set son by a plurality of stack of laminations, those skilled in the art can change the structure of seal or insulating case according to the needs of assembling and coiling.In addition, the number of teeth of each lamination also is not limited to the number of teeth shown in the figure.The thickness of the ring portion of each lamination, gear piece or tooth, shape also can be made different distortion.
Winding mode shown in Fig. 8 a-8d only is exemplary, and those skilled in the art can make different distortion to winding mode according to structural parameters such as lamination number, the numbers of teeth.
Though shown in the figure is the internal stator structure, the utility model equally also is applicable to outer stator structure.
From foregoing description as can be seen, the stator structure that makes according to assemble method of the present utility model has coiling convenience, high, the few advantage of coiling the end of a thread of copper factor.Therefore, be specially adapted to wind the line situation into aluminum steel.
Those skilled in the art obviously understand, can make various modifications and variations and can not break away from scope of the present utility model stator structure of the present utility model.In view of the practice of this specification and embodiment disclosed herein, other embodiment of the present utility model is conspicuous to those skilled in the art.It only is exemplary that this specification and example should be regarded as, and true scope of the present utility model is defined by the following claims.
Claims (12)
1. stacked stator that is used for motor, this stator is formed by a plurality of lamination pressings, each lamination comprise ring portion with a central axis and along ring portion circumferentially to equate that angle is apart from a plurality of teeth that are provided with at interval, the number of teeth of each lamination equates, the ring portion of described a plurality of laminations is stacked in the axial direction, it is characterized in that, in this stator, the tooth of described a plurality of laminations is along a tooth that has each other lamination between circumferentially being crisscross arranged of ring portion makes the adjacent teeth of each lamination, and all teeth that belong to same phase of this stator are twined by a continuous coiling.
2. stacked stator according to claim 1 is characterized in that, at the recess of the tooth root part that is provided with the tooth that is used to hold other lamination on the ring portion of each lamination between the circumferential adjacent tooth at this lamination.
3. stacked stator according to claim 1 and 2 is characterized in that the ring portion of the lamination at described tooth and its place is one-body molded.
4. stacked stator according to claim 1 and 2 is characterized in that, described tooth is formed by stacking by identical shaped a plurality of gear pieces.
5. stacked stator according to claim 4 is characterized in that, described gear piece is by sealed, riveted or the bonding superimposed connection that fixes each other.
6. stacked stator according to claim 4 is characterized in that, described gear piece partly is provided with the location hole that is used to insert alignment pin at tooth root.
7. stacked stator according to claim 1 is characterized in that, described tooth is handled through insulation.
8. stacked stator according to claim 7 is characterized in that, on described tooth insulating case is installed, and makes described tooth remove the tooth root part and tooth ends exceptionally is insulated the cover covering.
9. stacked stator according to claim 8 is characterized in that single tooth is formed by stacking by a plurality of gear pieces.
10. stacked stator according to claim 9 is characterized in that, insulating case is provided with the alignment pin of the described a plurality of gear pieces that are used to align.
11. stacked stator according to claim 1 is characterized in that, the quantity of described lamination is 2.
12. stacked stator according to claim 1 is characterized in that, described stator is internal stator or external stator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202934104U CN201576966U (en) | 2009-12-16 | 2009-12-16 | Laminated stator |
| US12/970,336 US8754566B2 (en) | 2009-12-16 | 2010-12-16 | Assembling method for a stator and stator produced thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202934104U CN201576966U (en) | 2009-12-16 | 2009-12-16 | Laminated stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576966U true CN201576966U (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202934104U Expired - Fee Related CN201576966U (en) | 2009-12-16 | 2009-12-16 | Laminated stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576966U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377261A (en) * | 2011-10-25 | 2012-03-14 | 珠海格力电器股份有限公司 | Modular motor stator |
| CN103151889A (en) * | 2013-03-22 | 2013-06-12 | 哈尔滨工业大学 | Inner rotor permanent-magnet synchronous motor with staggered pole structure and low positioning force moment |
| CN104377903A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Manufacturing method for stator |
| CN114453482A (en) * | 2022-04-12 | 2022-05-10 | 宁波震裕科技股份有限公司 | Manufacturing process of iron core |
-
2009
- 2009-12-16 CN CN2009202934104U patent/CN201576966U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377261A (en) * | 2011-10-25 | 2012-03-14 | 珠海格力电器股份有限公司 | Modular motor stator |
| CN103151889A (en) * | 2013-03-22 | 2013-06-12 | 哈尔滨工业大学 | Inner rotor permanent-magnet synchronous motor with staggered pole structure and low positioning force moment |
| CN103151889B (en) * | 2013-03-22 | 2015-08-19 | 哈尔滨工业大学 | Wrong electrode structure low location torque internal rotor permanent-magnetic synchronous motor |
| CN104377903A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Manufacturing method for stator |
| CN104377903B (en) * | 2014-11-19 | 2019-02-15 | 广东威灵电机制造有限公司 | The manufacturing method of stator |
| CN114453482A (en) * | 2022-04-12 | 2022-05-10 | 宁波震裕科技股份有限公司 | Manufacturing process of iron core |
| CN114453482B (en) * | 2022-04-12 | 2022-07-01 | 宁波震裕科技股份有限公司 | Manufacturing process of iron core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20161216 |