CN103001419A - Internal surface winding attaching technology for slotless stator armature - Google Patents
Internal surface winding attaching technology for slotless stator armature Download PDFInfo
- Publication number
- CN103001419A CN103001419A CN2012104683516A CN201210468351A CN103001419A CN 103001419 A CN103001419 A CN 103001419A CN 2012104683516 A CN2012104683516 A CN 2012104683516A CN 201210468351 A CN201210468351 A CN 201210468351A CN 103001419 A CN103001419 A CN 103001419A
- Authority
- CN
- China
- Prior art keywords
- coil
- iron core
- glass fiber
- stator armature
- glue
- 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
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses an internal surface winding attaching technology for a slotless stator armature. The technology includes coil winding, coil sizing, shank datum point confirmation, shank polishing, shank baking, insulating layer attaching, coil assignment attaching, coil attaching post-shaping and overall baking. According to the scheme, welding spots are reduced through continuous winding mode of the coil, short circuit and open circuit are avoided to the great extent, and the service life and safety of workpieces produced through the technology are improved; the coil wound by a winding former is good in overall size control, high in consistency and not easy to loosen or collapse; the coil and the shank after a plurality of setting adhesive smearing processing have good stability, the inner wall of the shank after polishing can effectively prevent burrs from scratching enameled wires, and the processing efficiency of the workpieces is guaranteed effectively; and the alkali-free glass fiber isolating coil and shank which have good insulating performance are adopted and the safety and practicability of the workpieces are further improved.
Description
Technical field
The invention belongs to the motor manufacturing technology field, be specifically related to non-groove stator armature inner surface winding and paste line technology.
Background technology
Stator armature generally is comprised of iron core, coil windings etc. in the brushless electric machine, can be divided into according to the structure of iron core groove is arranged, two kinds of slotlesses, brushless electric machine adopts the non-groove stator armature can reduce Cogging Torque and improves the low cruise stationarity.The motor type of slotless configuration is various, hollow-cup motor is exactly wherein a kind of, the servomotor that also has in addition other kind also is the slotless configuration that adopts, the non-groove stator armature need to carry out the inner surface winding and paste line processing, this structure need to directly be attached to winding the inwall of iron core, but the core interior space is little, and difficulty of processing is large.It mainly contains following difficult point:
1) winding former of conventional smooth-core armature coil is the single independently coil of coiling, so winding former one group of pressing plate of general outfit and core rod get final product.To many with the groove number, the smooth-core armature of dimensional requirement anxiety, if independent coiling single coil not only can increase flotation line, solder joint also can increase, and easily causes short circuit between the coil, even opens circuit.
2) conventional smooth-core armature coil is to turn to single coil, and coil is aided with fixing loose wire or the out-of-shape that can avoid coil of cement in winding process, and for connecting coiling because coil links together, the loose wire problem appears in coil easily.
3) in the coil winding process, want to guarantee the coil shape integrality, pretightning force control is crucial.Pretightning force is too little, coil sag, and difficult forming, pretightning force are too large, and coil resistance can increase, and also abrades easily the enamelled wire coat of paint.
4) selecting suitable winding former core rod size, is to guarantee coil not loose wire, the key that do not collapse.Too wide easy loose wire is too tightly easily hindered line.
5) because the interior hole dimension of iron core is less than normal, so that size Control and the flotation line problem solution difficulty of endoporus subsides line are large.
6) because endoporus pastes line, the space is little, operation is inconvenient, so how to guarantee that the uniformity and the consistency difficulty that connect up are large.
7) reduce armature end-connections, can reduce motor resistance, improve motor rotation blockage moment, embody level of processing.
8) insulation property of raising stator armature also are difficult points.
Summary of the invention
The technical problem to be solved in the present invention is: provide non-groove stator armature inner surface winding to paste line technology, it is many to solve the solder joint that prior art exists, and easily short circuit, hinders the problem of line, loose wire and electric insulation difficulty.
The objective of the invention is to be achieved by following technical solution:
Non-groove stator armature inner surface winding pastes line technology, and this technology may further comprise the steps:
(1) enamelled wire is connected the coil that turns at least ten circles at winding former, and every coiling one circle is all smeared solid type glue at enamelled wire;
(2) the coil integral body after step (1) is processed is evenly smeared a solid type glue and is retreated mould, and coil is adhesively secured to glue curing with adhesive tape with the upper and lower dual-side of coil after moving back mould;
(3) mill out setting-out datum mark in core ends one side by number of stator slots through miller, with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing with needle file again;
(4) will consolidate type glue with hairbrush and evenly brush at the iron core inner surface after step (3) processing, then the glass fiber tape half lap will be laid on one week of iron core inner surface, and with hairbrush solid type glue evenly be brushed on glass fiber tape;
(5) behind the solid type glue natural air drying of step (4), rule at inner surface glass fiber tape unshakable in one's determination according to the line datum mark that mills out through step (3);
(6) iron core after step (4) and step (5) are processed is put into curer and baked and banked up with earth 150 ℃ after 90 minutes, iron core is taken out be fixed on the support;
(7) with dismantle fixation adhesive tape on the coil after step (1) and step (2) are processed of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, with reason line plate coil is evenly arranged on the glass fiber tape according to the setting-out benchmark, with adhesive tape coil and iron core is fixed together again;
(8) workpiece after step (7) is processed embeds rear fixing in the iron core with shaping tooling before glue solidifies, workpiece is put into baking oven with frock cure by the curing temperature of glue;
(9) after the cooling of the workpiece normal temperature after step (8) is processed, remove frock and get product.
Described winding former comprises template, core rod, and template thickness is 2/3 of core rod width, and core rod thickness is enamelled wire wire diameter (containing coat of paint thickness)+0.05mm.
Described step (1) and the good loop length of (2) coiling are that described core length deducts side binding thickness, deduct hookup wire thickness, deduct 3～4mm again.
Pretightning force during coil winding is controlled at 10～15N.
Described step (7) is pasted line if do not paste line in 15～20 minutes after need repeating steps (6) cure again again.
In described step (6) and step (7) process, the number of times of baking and banking up with earth of described iron core is at least three times.
Described glass fiber tape is made of alkali-free glass fibre.
Compared with prior art, advantage of the present invention and positive role have:
By coil connect around method reduced solder joint, the appearance of having avoided short circuit as far as possible and having opened circuit is conducive to promote useful life and the security performance of the workpiece of present technique production; By the coil of winding former coiling, its overall dimensions control is better, and consistency is stronger, is difficult for loose wire, collapses; Through repeatedly smearing coil and the iron core after solid type glue is processed, it has good steadiness, and through the iron core inwall of sanding and polishing, it can effectively avoid burr to scratch enamelled wire, has effectively guaranteed the working (machining) efficiency of workpiece; Employing has the isolated coil of alkali-free glass fibre and the iron core of good insulating performance, has further promoted fail safe and the practicality of workpiece.
Embodiment
By the following examples the specific embodiment of the present invention is further specified, but that scope required for protection is not limited to is described.
Non-groove stator armature inner surface winding pastes line technology, and this technology may further comprise the steps:
(1) enamelled wire is connected the coil that turns at least ten circles at winding former, and every coiling one circle is all smeared solid type glue at enamelled wire.Adopt coil to connect the winding method coiling, reduce the appearance of solder joint, the generation of effectively having avoided short circuit and having opened circuit as far as possible;
(2) the coil integral body after step (1) is processed is evenly smeared a solid type glue and is retreated mould, and coil is adhesively secured to glue curing with adhesive tape with the upper and lower dual-side of coil after moving back mould.Smear processing, the stability of effective intensifier coil, not yielding, loose wire through repeatedly consolidating type glue;
(3) mill out setting-out datum mark in core ends one side by number of stator slots through miller, with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing with needle file again.Prevent that the iron core inner-hole burr from cutting the enamelled wire coat of paint, increase production cost;
(4) will consolidate type glue with hairbrush and evenly brush at the iron core inner surface after step (3) processing, then the glass fiber tape half lap will be laid on one week of iron core inner surface, and with hairbrush solid type glue evenly be brushed on glass fiber tape.Can effectively between winding and iron core, form insulating tape, effectively the performance of lifting workpieces;
(5) behind the solid type glue natural air drying of step (4), rule at inner surface glass fiber tape unshakable in one's determination according to the line datum mark that mills out through step (3), so that next step processing;
(6) there is not viscosity because of used solid type glue in time below 10 ℃, after iron core after step (4) and step (5) are processed put into 150 ℃ of curers and bake and bank up with earth 90 minutes, the iron core taking-up is fixed on the support, and it can guarantee that the solid type glue of smearing is effectively bonding under design temperature;
(7) with dismantle fixation adhesive tape on the coil after step (1) and step (2) are processed of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, with reason line plate coil is evenly arranged on the glass fiber tape according to the setting-out benchmark, with adhesive tape coil and iron core is fixed together again;
(8) workpiece after step (7) is processed for the loose wire that prevents coil comes off and problem on deformation, embeds rear fixing in the iron core with shaping tooling before glue solidifies, workpiece is put into baking oven with frock cure by the curing temperature of glue;
(9) after the workpiece after step (8) is processed cools off naturally, remove frock and get product.
Described winding former comprises template, core rod, and template thickness is 2/3 of iron core width, and core rod thickness is enamelled wire wire diameter (containing coat of paint thickness)+0.05mm.
Described step (1) and the good loop length of (2) coiling are that described core length deducts side binding thickness, deduct hookup wire thickness, deduct 3～4mm again.
Pretightning force during described coil winding is controlled at 10～15N.Can effectively prevent coil sag, difficult forming, coil resistance increases, the scratch of enamelled wire coat of paint.
Described step (7) is pasted line if do not paste line in 15～20 minutes after need repeating steps (6) cure again again, has viscosity to guarantee solid type glue.
In described step (6), (7) process, the number of times of baking and banking up with earth of described iron core is at least three times.
Described glass fiber tape is made of alkali-free glass fibre, and it has more excellent electrical insulation capability than common glass fibre, effectively the fail safe of lifting workpieces.
Embodiment 1: with enamelled wire template be the iron core width 2/3, core rod is that the winding former that the enamelled wire wire diameter adds 0.05mm connects the coil that turns to 10 circles, the coiling pretightning force is 10N, every coiling one circle is all smeared solid type glue at enamelled wire, after coiling is finished again integral body smear a solid type glue and retreat mould, move back coil behind the mould and with adhesive tape the upper and lower dual-side of coil be adhesively secured to glue and solidify for subsequent use; Iron core section one side of pasting line at need mills out datum mark through miller, with needle file with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing again, then the iron core after will processing is put into 150 ℃ and is baked and banked up with earth case and bake and bank up with earth after 90 minutes to take out and be fixed on the support, to consolidate the evenly iron core inner surface of brush after heating of type glue with hairbrush, then the glass fiber tape half lap is laid on one week of iron core inner surface, and consolidate type glue with the hairbrush handle and evenly brush on glass fiber tape, with dismantle fixation adhesive tape on the coil that has been cured of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, coil is evenly arranged on the glass fiber tape (if need again iron core is put into after pasting in the line process below the iron core drop in temperature to 10 ℃ bake and bank up with earth case heating) with reason line plate, with adhesive tape coil and iron core are fixed together again, for the loose wire that prevents coil comes off and problem on deformation, fix after before glue solidifies, shaping tooling being embedded iron core inner close fitting coil, workpiece is put into baking oven with frock to be cured 90 minutes by the curing temperature of glue, bake and bank up with earth and finish rear normal temperature cooling, namely finish processing after the dismounting frock.
Following examples 2 and 3 subsides line step are with embodiment 1, and difference only is the difference of actual conditions, therefore no longer one by one narration.
Embodiment 2: with enamelled wire template be coil width 2/3, core rod is that the winding former that the enamelled wire wire diameter adds 0.05mm connects the coil that turns to 15 circles, the coiling pretightning force is 13N, every coiling one circle is all smeared solid type glue at enamelled wire, after coiling is finished again integral body smear a solid type glue and retreat mould, move back coil behind the mould and with adhesive tape the upper and lower dual-side of coil be adhesively secured to glue and solidify for subsequent use; Iron core section one side of pasting line at need mills out datum mark through miller, with needle file with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing again, then the iron core after will processing is put into 150 ℃ and is baked and banked up with earth case and bake and bank up with earth after 90 minutes to take out and be fixed on the support, to consolidate the evenly iron core inner surface of brush after heating of type glue with hairbrush, then the glass fiber tape half lap is laid on one week of iron core inner surface, and consolidate type glue with the hairbrush handle and evenly brush on glass fiber tape, with dismantle fixation adhesive tape on the coil that has been cured of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, coil is evenly arranged on the glass fiber tape (if need again iron core is put into after pasting in the line process below the iron core drop in temperature to 10 ℃ bake and bank up with earth case heating) with reason line plate, with adhesive tape coil and iron core are fixed together again, for the loose wire that prevents coil comes off and problem on deformation, fix after before glue solidifies, shaping tooling being embedded iron core inner close fitting coil, workpiece is put into baking oven with frock to be cured 90 minutes by the curing temperature of glue, bake and bank up with earth and finish rear normal temperature cooling, namely finish processing after the dismounting frock.
Embodiment 3: with enamelled wire template be coil width 2/3, core rod is that the winding former that the enamelled wire wire diameter adds 0.05mm connects the coil that turns to 20 circles, the coiling pretightning force is 15N, every coiling one circle is all smeared solid type glue at enamelled wire, after coiling is finished again integral body smear a solid type glue and retreat mould, move back coil behind the mould and with adhesive tape the upper and lower dual-side of coil be adhesively secured to glue and solidify for subsequent use; Iron core section one side of pasting line at need mills out datum mark through miller, with needle file with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing again, then the iron core after will processing is put into 150 ℃ and is baked and banked up with earth case and bake and bank up with earth after 90 minutes to take out and be fixed on the support, to consolidate the evenly iron core inner surface of brush after heating of type glue with hairbrush, then the glass fiber tape half lap is laid on one week of iron core inner surface, and consolidate type glue with the hairbrush handle and evenly brush on glass fiber tape, with dismantle fixation adhesive tape on the coil that has been cured of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, coil is evenly arranged on the glass fiber tape (if need again iron core is put into after pasting in the line process below the iron core drop in temperature to 10 ℃ bake and bank up with earth case heating) with reason line plate, with adhesive tape coil and iron core are fixed together again, for the loose wire that prevents coil comes off and problem on deformation, fix after before glue solidifies, shaping tooling being embedded iron core inner close fitting coil, workpiece is put into baking oven with frock to be cured 90 minutes by the curing temperature of glue, bake and bank up with earth and finish rear normal temperature cooling, namely finish processing after the dismounting frock.
Claims (7)
1. non-groove stator armature inner surface winding pastes line technology, and it is characterized in that: this technology comprises the steps:
(1) enamelled wire is connected the coil that turns at least ten circles at winding former, and every coiling one circle is all smeared solid type glue at enamelled wire;
(2) the coil integral body after step (1) is processed is evenly smeared a solid type glue and is retreated mould, and coil is adhesively secured to glue curing with adhesive tape with the upper and lower dual-side of coil after moving back mould;
(3) mill out setting-out datum mark in core ends one side by number of stator slots through miller, with rounded ends rounding in the iron core, with sand paper inner surface is carried out polishing with needle file again;
(4) will consolidate type glue with hairbrush and evenly brush at the iron core inner surface after step (3) processing, then the glass fiber tape half lap will be laid on one week of iron core inner surface, and with hairbrush solid type glue evenly be brushed on glass fiber tape;
(5) behind the solid type glue natural air drying of step (4), rule at inner surface glass fiber tape unshakable in one's determination according to the line datum mark that mills out through step (3);
(6) iron core after step (4) and step (5) are processed put into 150 ℃ of curers bake and bank up with earth 90 minutes after, iron core taken out be fixed on the support;
(7) with dismantle fixation adhesive tape on the coil after step (1) and step (2) are processed of tweezers, smear solid type glue with hairbrush at glass fiber tape and coil, with reason line plate coil is evenly arranged on the glass fiber tape according to the setting-out benchmark, with adhesive tape coil and iron core is fixed together again;
(8) workpiece after step (7) is processed embeds rear fixing in the iron core with shaping tooling before glue solidifies, workpiece is put into baking oven with frock cure by the curing temperature of glue;
(9) after the cooling of the workpiece normal temperature after step (8) is processed, remove frock and get product.
2. non-groove stator armature inner surface winding according to claim 1 pastes line technology, and it is characterized in that: described winding former comprises template, core rod, and template thickness is 2/3 of core rod width, and core rod thickness is that the enamelled wire wire diameter adds 0.05mm.
3. non-groove stator armature inner surface winding according to claim 1 pastes line technology, it is characterized in that: step (1) and the good loop length of (2) coiling are that described core length deducts side binding thickness, deduct hookup wire thickness, deduct 3～4mm again.
4. non-groove stator armature inner surface winding according to claim 1 pastes line technology, and it is characterized in that: the pretightning force during coil winding is controlled at 10～15N.
5. non-groove stator armature inner surface winding according to claim 1 pastes line technology, it is characterized in that: step (7) is pasted line if do not paste line in 15～20 minutes after need repeating steps (6) cure again again.
6. non-groove stator armature inner surface winding according to claim 1 pastes line technology, and it is characterized in that: in step (6) and step (7) process, the number of times of baking and banking up with earth of described iron core is at least three times.
7. non-groove stator armature inner surface winding according to claim 1 pastes line technology, and it is characterized in that: described glass fiber tape is made of alkali-free glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468351.6A CN103001419B (en) | 2012-11-19 | 2012-11-19 | Internal surface winding attaching technology for slotless stator armature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468351.6A CN103001419B (en) | 2012-11-19 | 2012-11-19 | Internal surface winding attaching technology for slotless stator armature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103001419A true CN103001419A (en) | 2013-03-27 |
| CN103001419B CN103001419B (en) | 2014-10-22 |
Family
ID=47929667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210468351.6A Active CN103001419B (en) | 2012-11-19 | 2012-11-19 | Internal surface winding attaching technology for slotless stator armature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103001419B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753262A (en) * | 2015-03-26 | 2015-07-01 | 西安微电机研究所 | Moisture-resisting protective method of big seat number split type variable rotary winding and iron core |
| CN104979975A (en) * | 2015-07-20 | 2015-10-14 | 南车株洲电力机车研究所有限公司 | Wire embedding method with scattered coil edgewise winding forming |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072047A (en) * | 1991-09-13 | 1993-05-12 | 法拉第能源基金会有限公司 | Be used to make improving one's methods of motor windings |
| JP2002272049A (en) * | 2001-03-08 | 2002-09-20 | Yaskawa Electric Corp | Soltless motor |
| JP2003070197A (en) * | 2001-08-29 | 2003-03-07 | Mitsubishi Materials Corp | Stator coil and motor using the same, manufacturing method of stator coil and motor, and coil unit and manufacturing method thereof |
| WO2004098025A1 (en) * | 2003-04-28 | 2004-11-11 | Danfoss A/S | Slotless stator with an expanding member to fix the winding |
| CN101483361A (en) * | 2008-01-11 | 2009-07-15 | 德昌电机(深圳)有限公司 | Stator winding construction and winding method for slotless motor stator winding, and stator construction with the winding construction |
| CN101989792A (en) * | 2010-11-18 | 2011-03-23 | 宝鸡航天华科机电工业有限公司 | Coil molding process of large-size coreless cup motor |
-
2012
- 2012-11-19 CN CN201210468351.6A patent/CN103001419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072047A (en) * | 1991-09-13 | 1993-05-12 | 法拉第能源基金会有限公司 | Be used to make improving one's methods of motor windings |
| JP2002272049A (en) * | 2001-03-08 | 2002-09-20 | Yaskawa Electric Corp | Soltless motor |
| JP2003070197A (en) * | 2001-08-29 | 2003-03-07 | Mitsubishi Materials Corp | Stator coil and motor using the same, manufacturing method of stator coil and motor, and coil unit and manufacturing method thereof |
| WO2004098025A1 (en) * | 2003-04-28 | 2004-11-11 | Danfoss A/S | Slotless stator with an expanding member to fix the winding |
| CN101483361A (en) * | 2008-01-11 | 2009-07-15 | 德昌电机(深圳)有限公司 | Stator winding construction and winding method for slotless motor stator winding, and stator construction with the winding construction |
| CN101989792A (en) * | 2010-11-18 | 2011-03-23 | 宝鸡航天华科机电工业有限公司 | Coil molding process of large-size coreless cup motor |
Non-Patent Citations (1)
| Title |
|---|
| 张子忠: "《微电机结构工艺学》", 31 July 1997 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753262A (en) * | 2015-03-26 | 2015-07-01 | 西安微电机研究所 | Moisture-resisting protective method of big seat number split type variable rotary winding and iron core |
| CN104979975A (en) * | 2015-07-20 | 2015-10-14 | 南车株洲电力机车研究所有限公司 | Wire embedding method with scattered coil edgewise winding forming |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103001419B (en) | 2014-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103001419B (en) | Internal surface winding attaching technology for slotless stator armature | |
| CN104265047B (en) | The preparation method that glass fiber winding strengthens polyurethane resin tapered electric pole | |
| CN110517859A (en) | A kind of inductance component and preparation method thereof | |
| CN107800213A (en) | Combined high-speed permanent magnet machine rotor and its manufacture method | |
| CN102868241A (en) | Stator core and manufacturing method thereof | |
| CN109104055B (en) | Amorphous alloy axial flux motor stator core manufacturing method | |
| CN102548076B (en) | Induction cooker wire coil and wire coil winding technology | |
| CN108880136B (en) | A kind of process for processing automobile stator or rotor with silicon steel sheet | |
| CN101707422A (en) | Processing method for interturn insulation of high-voltage motor pole coil | |
| CN205945304U (en) | Stator module and have its motor and air conditioner | |
| CN101651388A (en) | Method and device for controlling winding length of motor stator coil type coil | |
| CN201118399Y (en) | Single-phase asynchronous electromotor stator | |
| CN113824227A (en) | Sheath structure of motor rotor and preparation method | |
| CN106532993A (en) | Electromagnetic structure of ISG motor and ISG motor | |
| CN104347260B (en) | Manufacturing process of integrally formed traction electromagnet | |
| CN105207426B (en) | A kind of patch line method of non-groove stator armature outer surface winding | |
| TW201006101A (en) | Rotor structure of motor and method of manufacturing same | |
| CN211630038U (en) | Sleeve tool for rotor | |
| CN211630042U (en) | Coil winding device | |
| CN201430005Y (en) | Mica insulation composite wire | |
| CN212277007U (en) | Distribution transformer low-voltage winding former convenient for demoulding | |
| CN219875404U (en) | Shaping curing mold suitable for stator structure of slotless brushless direct current motor | |
| CN103595196B (en) | Large high-voltage motor bar formula line rod moulding process | |
| CN201113578Y (en) | Surface motor stator disk subassembly | |
| CN202276200U (en) | Stator and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |