CN102638141A - Method for winding stator coil of slotless motor - Google Patents
Method for winding stator coil of slotless motor Download PDFInfo
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- CN102638141A CN102638141A CN2012100790947A CN201210079094A CN102638141A CN 102638141 A CN102638141 A CN 102638141A CN 2012100790947 A CN2012100790947 A CN 2012100790947A CN 201210079094 A CN201210079094 A CN 201210079094A CN 102638141 A CN102638141 A CN 102638141A
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Abstract
The invention relates to a method for winding a stator coil of a slotless motor, and the method comprises the following steps of: A, mounting a male die: utilizing one male die, and mounting the male die onto a winding machine; B, winding the coil: winding an enamelled wire around the male die by means of the winding machine, and then automatically winding the enamelled wire around the male die by means of the winding machine; C, removing a winding template: taking out of the male die out of the winding machine after winding the enamelled wire around the male die, and pulling out the winding template on the male die; D, mounting insulating paper and a silicon steel disc sleeve: after pulling out the winding template from the male die, nesting a layer of insulating paper onto the male die wound with the coil, employing a forming die, putting the silicon steel disc sleeve in the forming die, then putting one end of the male die into the silicon steel disc sleeve, and finally, pressing the forming die on a press machine so that the silicon steel disc sleeve is sleeved to the wound coil; and E, removing a cylindrical body: after the insulating paper and the silicon steel disc sleeve are sleeved, dissociating the cylindrical body out of the coil, thereby finishing the winding of the stator coil of the slotless motor.
Description
[technical field]
The present invention relates to a kind of slotless electric machines stator coil method for winding.
[background technology]
The coil of existing slotless electric machines stator coiling is all made of artificial, promptly has hand to come coiling slotless electric machines stator coil.Way will inevitably cause its cost high like this, and inefficiency, quality can not guarantee that rate of finished products is not high.
[summary of the invention]
The present invention has overcome the deficiency of prior art, and the slotless electric machines stator coil that a kind of coiling cost is low, efficient, the coiling quality is good, in light weight, power is big, volume is little method for winding is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Slotless electric machines stator coil method for winding is characterized in that including following steps:
A: male model is installed, is utilized a male model that can be used for coiling, male model is installed on the coil winding machine, for next step with enamelled wire around to male model, preparing;
B: coiling, utilize the coil winding machine of design, coil winding machine automatically with the enamelled wire coiling to male model;
C: extract the coiling matrix, enamelled wire around behind male model, is taken out male model from coil winding machine, afterwards the coiling matrix on the male model is extracted;
D: insulating paper and silicon steel sheet cover are installed; Behind the coiling matrix of choosing out on the male model,, utilize a mould 8 afterwards being wound with cover last layer insulating paper 11 on the male model of coil; In mould 8, place silicon steel sheet cover 9; Afterwards an end of male model is put into silicon steel sheet cover 9, mould 8 is taken on the forcing press suppressed afterwards, make silicon steel sheet cover 9 be inserted in around coil in;
E: extract cylindrical body, put after insulating paper and the silicon steel sheet cover, cylindrical body is detached out from coil, accomplish the coiling of slotless electric machines stator coil.
Aforesaid slotless electric machines stator coil method for winding; It is characterized in that described coil winding machine includes frame 1; And arranged on left and right sides on frame 1 is provided with Winder 2 separately and promotes the Drive Structure that Winder 2 moves; End at Winder 2 is connected with master mold 3, on frame 1, is provided with the driving clamping device 5 that can clamp male model 4 and rotate male model 4, and a side is provided with and can male model 4 be pushed to the die frame device 6 in the driving clamping device 5 on the opposite of driving clamping device 5.
Aforesaid slotless electric machines stator coil method for winding; It is characterized in that described Winder 2 includes support 24; The rotating shaft 22 that on support 24, is provided with drive motors 21 and is driven by drive motors 21 is provided with the through wires hole 221 that enamelled wire 7 is passed in rotating shaft 22 axle center, in rotating shaft 22, is connected with bobbin winding head 23; On bobbin winding head 23, be provided with coiling arm 231, master mold 3 keeps motionless synchronizer 25 being provided with in the rotating shaft 22 when bobbin winding head 23 rotates.
Aforesaid slotless electric machines stator coil method for winding; It is characterized in that described synchronizer 25 includes the synchronous rotating shaft 251 on the bobbin winding head 23; Be provided with synchronous rotating disk 252 separately at the two ends of synchronous rotating shaft 251; In rotating shaft 22, be arranged with first rotating disk 253 and second largest rotating disk 254, first rotating disk 253 is fixed on the support 24, and first rotating disk 253 is connected through being with synchronously with one of them synchronous rotating disk 252; Second largest rotating disk 254 is connected through being with synchronously with another synchronous rotating disk 252, and described master mold 3 is connected on the second largest rotating disk 254.
Aforesaid slotless electric machines stator coil method for winding is characterized in that described master mold 3 includes master mold body 31, on master mold body 31, is provided with die cavity 32, and described male model 4 can place die cavity 32.
Aforesaid slotless electric machines stator coil method for winding; It is characterized in that described male model 4 includes cylindrical body 41; On cylindrical body 41 circumferential surfaces, removably be provided with a plurality of coiling matrixs 42; Each coiling matrix 42 is distributed on cylindrical body 41 circumferential surfaces, is being provided with on the cylindrical body 41 and can coiling matrix 42 be fixed on the latch-up structure 43 on the cylindrical body 41.
Aforesaid slotless electric machines stator coil method for winding; The number that it is characterized in that said coiling matrix 42 is 2-10; Each coiling matrix 42 is evenly distributed on the circumferential surface of cylindrical body 41, and an end of said cylindrical body 41 is provided with the handle 44 that can let the coil winding machine mould clamp.
Aforesaid slotless electric machines stator coil method for winding is characterized in that an end of said coiling matrix 42 is provided with hypotenuse 421, this hypotenuse 421 and cylindrical body 41 surfaces be formed with one can catch on coil angle.
Aforesaid slotless electric machines stator coil method for winding; It is characterized in that said latch-up structure 43 includes the straight trough 431 that is located at matrix 42 insertions that on cylindrical body 41 circumferential surfaces and conveniently wind the line; Side walls at straight trough 431 is provided with through hole 432; This through hole 432 penetrates the end of cylindrical body 41; Be provided with deep-slotted chip breaker 433 in coiling matrix 42 sides, be provided with purl 434 in the end of cylindrical body 41, purl 434 inserts in the deep-slotted chip breaker 433 that a part that makes purl in the through holes 432 snaps in coiling matrix 42 and coiling matrix 42 is fixed on the cylindrical body 41; Said a plurality of purl 434 is fixedly installed on the end cap 435.
Aforesaid slotless electric machines stator coil method for winding is characterized in that said mould 8 includes counterdie 81 and patrix 82, and described silicon steel sheet cover 9 is placed in the counterdie 81, after counterdie 81 is put in said male model lower end, patrix 82 is covered on counterdie 81.
The present invention compared with prior art has following advantage:
The present invention utilizes a coil winding machine, and coil winding to male model, is managed male model is removed again, just can realize automatic winding slotless electric machines stator coil.This method is simple, practicality, and service efficiency is high, and quality is guaranteed, and rate of finished products is high.And the coil that winds up has advantages such as in light weight, that power is big, volume is little.
[description of drawings]
Fig. 1 is a stereogram of the present invention;
Fig. 2 is the stereogram of Winder;
Fig. 3 is the stereogram of master mold;
Fig. 4 is the stereogram of two Winders;
Fig. 5 is the stereogram of male model;
Fig. 6 is the exploded view of male model;
Fig. 7 is the male model sketch map after winding the line through coil winding machine;
Fig. 8 is the decomposing schematic representation of the male model after the coil winding machine coiling, insulating paper and silicon steel sheet cover;
Fig. 9 is the sketch map of mould;
Figure 10 is with the sketch map in insulating paper and the silicon steel sheet condom inlet wire circle;
Figure 11 is the sketch map of forcing press;
Figure 12 is the sketch map that extracts coil after the cylindrical body;
Figure 13 is installed to the sketch map on the brushless slotless motor for coil.
[embodiment]
Below in conjunction with accompanying drawing the present invention is elaborated:
Slotless electric machines stator coil method for winding includes following steps:
A: male model is installed, is utilized a male model that can be used for coiling, male model is installed on the coil winding machine, for next step with enamelled wire around to male model, preparing.
B: coiling, utilize the coil winding machine of design, coil winding machine automatically with the enamelled wire coiling to male model.Enamelled wire can two or three coilings together.
C: extract the coiling matrix, enamelled wire around behind male model, is taken out male model from coil winding machine, afterwards the coiling matrix on the male model is extracted.Such as extracting the coiling matrix with pliers.
D: insulating paper and silicon steel sheet cover are installed, behind the coiling matrix of choosing out on the male model, are being wound with cover last layer insulating paper 11 on the male model of coil.Utilize a mould 8 afterwards, in mould 8, place silicon steel sheet cover 9.Afterwards an end of male model is put into silicon steel sheet cover 9.Afterwards mould 8 is taken on the forcing press and is suppressed, make silicon steel sheet cover 9 be inserted in around coil in.
E: extract cylindrical body, put after insulating paper and the silicon steel sheet cover, cylindrical body is detached out from coil, accomplish the coiling of slotless electric machines stator coil.The coil that just can hold moulding is installed on the brushless slotless motor
In addition, the coil that winds can also carry out steps such as dipping lacquer and oven dry.Coil is installed on the brushless slotless motor.
In said method, described coil winding machine includes frame 1, and it is not shown in the figures with the Drive Structure that promotion Winder 2 moves that the and arranged on left and right sides on frame 1 is provided with Winder 2 separately.Be Drive Structure drive separately Winder do relative to or rightabout move, make these two Winders 2 near or away from, Drive Structure generally adopts motor and transmission mechanism to realize.
End at Winder 2 is connected with master mold 3.On frame 1, be provided with the driving clamping device 5 that can clamp male model 4 and rotate male model 4.A side is provided with and can male model 4 be pushed to the die frame device 6 in the driving clamping device 5 on the opposite of driving clamping device 5.
Specifically, described master mold 3 includes master mold body 31, on master mold body 31, is provided with die cavity 32, and described male model 4 can place die cavity 32.When carrying out coiling, two master molds 3 will clamp the two ends of male model 4, and enamelled wire 7 is understood from process between two master molds 3, thereby enamelled wire 7 is wound on the male model 4.
Described Winder 2 includes support 24, the rotating shaft 22 that on support 24, is provided with drive motors 21 and is driven by drive motors 21.Be provided with the through wires hole 221 that enamelled wire 7 is passed in rotating shaft 22 axle center.In rotating shaft 22, be connected with bobbin winding head 23, on bobbin winding head 23, be provided with coiling arm 231.Master mold 3 keeps motionless synchronizer 25 being provided with in the rotating shaft 22 when bobbin winding head 23 rotates.Like this, two master molds 3 will clamp the two ends of male model 4, and bobbin winding head 23 just rotates coiling, and master mold 3 then needs to keep motionless, and synchronizer 25 is exactly to have realized this kind function.
Described synchronizer 25 includes the synchronous rotating shaft 251 on the bobbin winding head 23, is provided with synchronous rotating disk 252 separately at the two ends of synchronous rotating shaft 251.In rotating shaft 22, be arranged with first rotating disk 253 and second largest rotating disk 254; First rotating disk 253 is fixed on the support 24; First rotating disk 253 is connected through being with synchronously with one of them synchronous rotating disk 252, and second largest rotating disk 254 is connected through being with synchronously with another synchronous rotating disk 252.Like this, the motion state of first rotating disk 253 will be transferred on the second largest rotating disk 254 through synchronous rotating disk 252 and band synchronously.253 protections of first rotating disk are motionless, also keep motionless on the then second largest rotating disk 254, make and make when coiling, and master mold 3 keeps motionless.Described master mold 3 is connected on the second largest rotating disk 254.
Described male model 4 includes cylindrical body 41; On cylindrical body 41 circumferential surfaces, removably be provided with a plurality of coiling matrixs 42; Each coiling matrix 42 is distributed on cylindrical body 41 circumferential surfaces, is being provided with on the cylindrical body 41 and can coiling matrix 42 be fixed on the latch-up structure 43 on the cylindrical body 41.
The number of said coiling matrix 42 is 2-10, and each coiling matrix 42 is evenly distributed on the circumferential surface of cylindrical body 41, and an end of said cylindrical body 41 is provided with the handle 44 that can let the coil winding machine mould clamp.
One end of said coiling matrix 42 is provided with hypotenuse 421, this hypotenuse 421 and cylindrical body 41 surfaces be formed with one can catch on coil angle.Had after the angle, when coiling, coil will be wrapped on the coiling matrix 42 easily, and can not come off from coiling matrix 42.
Said latch-up structure 43 includes and is located on cylindrical body 41 circumferential surfaces and the straight trough 431 of convenient matrix 42 insertions that wind the line; Side walls at straight trough 431 is provided with through hole 432; This through hole 432 penetrates the end of cylindrical body 41; Be provided with deep-slotted chip breaker 433 in coiling matrix 42 sides, be provided with purl 434 in the end of cylindrical body 41, purl 434 inserts in the deep-slotted chip breaker 433 that a part that makes purl in the through holes 432 snaps in coiling matrix 42 and coiling matrix 42 is fixed on the cylindrical body 41.Said a plurality of purl 434 is fixedly installed on the end cap 435.To insert like this or can pull out together when pulling out purl, the convenient use.Have when coil winding machine winds the line, under the effect of end cap 435, enamelled wire can be around to purl 434 again.
Said driving clamping device 5 includes anchor clamps 51 and can drive the drive motors 52 that anchor clamps 51 clamp male model 4 and drive its rotation.
Said die frame device 6 includes the placement rack 61 that can place male model 4, and it is not shown in the figures on frame 1, to be provided with driving placement rack 61 forward and backward mobile drive motors.
Like this; When wanting coiling, each sheet coiling matrix 42 is inserted on cylindrical body 41 circumferential surfaces, again purl 434 is inserted in the through hole 432 afterwards; The part of purl is snapped in the deep-slotted chip breaker 433 of coiling matrix 42; Make purl block coiling matrix 42, thereby coiling matrix 42 is fixed on the cylindrical body 1, conveniently carry out coiling.
Afterwards, male model 4 is placed on the die frame device 6, drives male model 4 by die frame device 6 and move, and the handle 44 of male model 4 is moved in the driving clamping device 5, and clamp the handle 44 of male model 4 by driving clamping device 5.Afterwards, promote the Drive Structure action that Winder 2 moves, with two relative Winders 2 near, make two master molds 3 clamp the both ends of male model 4 together.The rotating shaft 22 that drives of drive motors 21 afterwards rotates also that band bobbin winding head 23 rotates, and the enamelled wire 7 on the coiling arm 231 will be from process between two master molds 3, thereby enamelled wire 7 is wound on the male model 4.And under the effect of synchronizer 25, master mold 3 keeps motionless, makes coiling arm 231 be with enamelled wire 7 to continue to be wound on the male model 4.
When enamelled wire 7 behind a full circle coil, under two actions of master mold 3, unclamp male model 4 in Drive Structure, driving clamping device 5 actions drive male model and rotate an angle, thereby but make the coiling matrix 42 that also not have to wind the line place the position of coiling.Latter two master mold 3 again the two ends of male model 4 are clamped.The rotating shaft 22 that is driven by drive motors 21 is again rotated and band bobbin winding head 23 rotates, and this moment, bobbin winding head 23 can counter-rotation wind the line as required.The enamelled wire 7 of coiling on the arm 231 will be from process between two master molds 3, thereby enamelled wire 7 is wound on the coiling matrix 42 of male model 4.So action is accomplished until coiling.
Said mould 8 includes counterdie 81 and patrix 82, and described silicon steel sheet cover 9 is placed in the counterdie 81, after counterdie 81 is put in said male model lower end, patrix 82 is covered on counterdie 81.
Forcing press 10 among the present invention then includes a support 101, above support 101, is provided with pressure arm 102, and described mould 8 is placed on the support 101, comes press-moulding die 8 by pressure arm 102.
Claims (10)
1. slotless electric machines stator coil method for winding is characterized in that including following steps:
A: male model is installed, is utilized a male model that can be used for coiling, male model is installed on the coil winding machine, for next step with enamelled wire around to male model, preparing;
B: coiling, utilize coil winding machine, coil winding machine automatically with the enamelled wire coiling to male model;
C: extract the coiling matrix, enamelled wire around behind male model, is taken out male model from coil winding machine, afterwards the coiling matrix on the male model is extracted;
D: insulating paper and silicon steel sheet cover are installed; Behind the coiling matrix of choosing out on the male model,, utilize a mould (8) afterwards being wound with cover last layer insulating paper (11) on the male model of coil; In mould (8), place silicon steel sheet cover (9); Afterwards an end of male model is put into silicon steel sheet cover (9), mould (8) is taken on the forcing press suppressed afterwards, make silicon steel sheet cover (9) be inserted in around coil in;
E: extract cylindrical body, put after insulating paper and the silicon steel sheet cover, cylindrical body is detached out from coil, accomplish the coiling of slotless electric machines stator coil.
2. slotless electric machines stator coil method for winding according to claim 1; It is characterized in that described coil winding machine includes frame (1); And arranged on left and right sides on frame (1) is provided with Winder (2) separately and promotes the Drive Structure that Winder (2) moves; End at Winder (2) is connected with master mold (3); On frame (1), be provided with the driving clamping device (5) that can clamp male model (4) and rotate male model (4), a side is provided with and can male model (4) be pushed to the die frame device (6) in the driving clamping device (5) on the opposite of driving clamping device (5).
3. slotless electric machines stator coil method for winding according to claim 2; It is characterized in that described Winder (2) includes support (24); The rotating shaft (22) that on support (24), is provided with drive motors (21) and drives by drive motors (21); Be provided with the through wires hole (221) that enamelled wire (7) is passed in rotating shaft (22) axle center; In rotating shaft (22), be connected with bobbin winding head (23), on bobbin winding head (23), be provided with coiling arm (231), the motionless synchronizer (25) of master mold (3) maintenance being provided with in the rotating shaft (22) when bobbin winding head (23) rotates.
4. slotless electric machines stator coil method for winding according to claim 3; It is characterized in that described synchronizer (25) includes the synchronous rotating shaft (251) on the bobbin winding head (23); Be provided with synchronous rotating disk (252) separately at the two ends of synchronous rotating shaft (251); In rotating shaft (22), be arranged with first rotating disk (253) and second largest rotating disk (254), first rotating disk (253) is fixed on the support (24), and first rotating disk (253) is connected through being with synchronously with one of them synchronous rotating disk (252); Second largest rotating disk (254) is connected through being with synchronously with another synchronous rotating disk (252), and described master mold (3) is connected on the second largest rotating disk (254).
5. according to claim 2 or 3 or 4 described slotless electric machines stator coil method for winding, it is characterized in that described master mold (3) includes master mold body (31), on master mold body (31), be provided with die cavity (32), described male model (4) can place die cavity (32).
6. according to claim 2 or 3 or 4 described slotless electric machines stator coil method for winding; It is characterized in that described male model (4) includes cylindrical body (41); On cylindrical body (41) circumferential surface, removably be provided with a plurality of coiling matrixs (42); Each coiling matrix (42) is distributed on cylindrical body (41) circumferential surface, is being provided with on the cylindrical body (41) and can coiling matrix (42) be fixed on the latch-up structure (43) on the cylindrical body (41).
7. slotless electric machines stator coil method for winding according to claim 6; The number that it is characterized in that said coiling matrix (42) is 2-10; Each coiling matrix (42) is evenly distributed on the circumferential surface of cylindrical body (41), and an end of said cylindrical body (41) is provided with the handle (44) that can let the coil winding machine mould clamp.
8. according to claim 6 or 7 described slotless electric machines stator coil method for winding, it is characterized in that an end of said coiling matrix (42) is provided with hypotenuse (421), this material limit (421) and cylindrical body (41) surface be formed with one can catch on coil angle.
9. according to claim 6 or 7 described slotless electric machines stator coil method for winding; It is characterized in that said latch-up structure (43) includes the straight trough (431) that is located at matrix (42) insertion that on cylindrical body (41) circumferential surface and conveniently winds the line; Side walls at straight trough (431) is provided with through hole (432); This through hole (432) penetrates the end of cylindrical body (41); Be provided with deep-slotted chip breaker (433) in coiling matrix (42) sides, be provided with purl (434) in the end of cylindrical body (41), purl (434) inserts in the deep-slotted chip breaker (433) that a part that makes purl in the through hole (432) snaps in coiling matrix (42) and coiling matrix (42) is fixed on the cylindrical body (41); Said a plurality of purl (434) is fixedly installed on the end cap (435).
10. according to claim 1 or 2 or 3 or 4 described slotless electric machines stator coil method for winding; It is characterized in that said mould (8) includes counterdie (81) and patrix (82); Described silicon steel sheet cover (9) is placed in the counterdie (81); After counterdie (81) is put in said male model lower end, patrix (82) is covered on counterdie (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100790947A CN102638141B (en) | 2012-03-22 | 2012-03-22 | Method for winding stator coil of slotless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100790947A CN102638141B (en) | 2012-03-22 | 2012-03-22 | Method for winding stator coil of slotless motor |
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| Publication Number | Publication Date |
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| CN102638141A true CN102638141A (en) | 2012-08-15 |
| CN102638141B CN102638141B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100790947A Active CN102638141B (en) | 2012-03-22 | 2012-03-22 | Method for winding stator coil of slotless motor |
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| CN (1) | CN102638141B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207426A (en) * | 2015-09-22 | 2015-12-30 | 贵州航天林泉电机有限公司 | Wire attaching method for winding on outer surface of slotless stator armature |
| CN107887158A (en) * | 2018-01-16 | 2018-04-06 | 苏州洪振鑫自动化设备科技有限公司 | A kind of coil winding machine coiling die mechanism |
| CN108039798A (en) * | 2018-01-22 | 2018-05-15 | 株洲南方机电制造有限公司 | A kind of turriform end is into arc coil radian intelligence edge-wind method and device |
| CN109842251A (en) * | 2017-11-27 | 2019-06-04 | 长鹰信质科技股份有限公司 | A kind of manufacturing method of wave-wound coil stator core |
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| CN1234590A (en) * | 1999-05-27 | 1999-11-10 | 中国科学院等离子体物理研究所 | Tensionfree coiling technology and coiling machine for complex-section armoured superconductive cable conductor coils |
| JP2000014096A (en) * | 1998-06-22 | 2000-01-14 | Odawara Engineering Co Ltd | Method and device for winding coil |
| CN1387207A (en) * | 2001-05-22 | 2002-12-25 | 佳能株式会社 | Coil unit and mfg. method thereof |
| US20060152092A1 (en) * | 2005-01-10 | 2006-07-13 | Lg Electronics Inc. | Stator for reciprocating motor and fabrication method thereof |
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2012
- 2012-03-22 CN CN2012100790947A patent/CN102638141B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000014096A (en) * | 1998-06-22 | 2000-01-14 | Odawara Engineering Co Ltd | Method and device for winding coil |
| CN1234590A (en) * | 1999-05-27 | 1999-11-10 | 中国科学院等离子体物理研究所 | Tensionfree coiling technology and coiling machine for complex-section armoured superconductive cable conductor coils |
| CN1387207A (en) * | 2001-05-22 | 2002-12-25 | 佳能株式会社 | Coil unit and mfg. method thereof |
| US20060152092A1 (en) * | 2005-01-10 | 2006-07-13 | Lg Electronics Inc. | Stator for reciprocating motor and fabrication method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207426A (en) * | 2015-09-22 | 2015-12-30 | 贵州航天林泉电机有限公司 | Wire attaching method for winding on outer surface of slotless stator armature |
| CN109842251A (en) * | 2017-11-27 | 2019-06-04 | 长鹰信质科技股份有限公司 | A kind of manufacturing method of wave-wound coil stator core |
| CN107887158A (en) * | 2018-01-16 | 2018-04-06 | 苏州洪振鑫自动化设备科技有限公司 | A kind of coil winding machine coiling die mechanism |
| CN108039798A (en) * | 2018-01-22 | 2018-05-15 | 株洲南方机电制造有限公司 | A kind of turriform end is into arc coil radian intelligence edge-wind method and device |
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| Publication number | Publication date |
|---|---|
| CN102638141B (en) | 2013-11-20 |
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