CN112787450A - Rotating electrical machine - Google Patents
Rotating electrical machine Download PDFInfo
- Publication number
- CN112787450A CN112787450A CN202011124618.0A CN202011124618A CN112787450A CN 112787450 A CN112787450 A CN 112787450A CN 202011124618 A CN202011124618 A CN 202011124618A CN 112787450 A CN112787450 A CN 112787450A
- Authority
- CN
- China
- Prior art keywords
- electric machine
- machine according
- rotating electric
- bobbin
- terminal plate
- 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.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/527—Fastening salient pole windings or connections thereto applicable to rotors only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The present invention has a problem that, in a rotating electrical machine that generates strong vibration such as a vehicle-mounted one, a terminal block in the rotating electrical machine is detached because the rotating electrical machine cannot receive the vibration. The rotating electric machine includes: a bobbin provided at an end of the core and having a container-shaped groove; a coil formed by winding a conductor wire around the bobbin; and a terminal plate for distributing current to the plurality of coils arranged around the rotation axis, and having a protrusion fixed in the adhesive of the container-shaped groove.
Description
Technical Field
The present invention relates to a rotating electric machine.
Background
In a rotating electrical machine and a generator for an automobile, which have a limited installation space, a small size and a high output are required. In order to achieve miniaturization and high output, as a method of distributing a large current to each winding, a method of arranging a wiring board having a rectangular cross section in an annular shape and connecting each winding is used as in patent document 1.
As a method for fixing the stator to the wiring board of this kind, patent document 1 adopts the following method: the terminal plate is formed with a receding portion, and is fitted with an insulator (corresponding to a bobbin). Further, in patent document 2, a wiring board is insert-molded and fixed.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2008-312276
Patent document 2: japanese patent application laid-open No. 2010-141953
Disclosure of Invention
However, in a rotating electrical machine that is mounted on a vehicle and generates strong vibration, the terminal block may fall off due to failure to withstand the vibration in the structure as in patent document 1. Further, the insert molding as in patent document 2 has a problem that the manufacturing cost becomes high.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a rotating electrical machine that can be firmly fixed without dropping a terminal plate even when subjected to strong vibration, and that can be manufactured at low cost.
The application discloses rotating electrical machines includes: a bobbin provided at an end of the core and having a container-shaped groove; a coil formed by winding a conductor wire around the bobbin; and a terminal plate for distributing current to the plurality of coils arranged around the rotation axis, and having a protrusion fixed in the adhesive of the container-shaped groove.
According to the present invention, since the bobbin, which is integrated with the coil by winding the conductor wire, has the container-shaped groove portion, and the protruding portion of the terminal plate is fixed to the adhesive in the groove portion, the terminal plate can be fixed in correspondence with the plurality of coils arranged in the circumferential direction of the rotation shaft.
Further, since the adhesive is used only in the container-shaped groove portion of the bobbin, the manufacturing cost can be reduced without using the adhesive over the entire circumferential direction of the rotating shaft of the rotating electrical machine.
Drawings
Fig. 1 is a schematic diagram showing a cross section of a rotating electric machine according to embodiment 1 of the present application.
Fig. 2 is a perspective view showing the entire armature of a rotating electric machine according to embodiment 1 of the present application.
Fig. 3 is a perspective view showing a coil of a rotating electric machine according to embodiment 1 of the present application.
Fig. 4 is a view showing a bobbin of a rotary electric machine according to embodiment 1 of the present application, in which (a) is a perspective view, (B) is a plan view, and (C) is a side view.
Fig. 5 is a perspective view and a partially enlarged view showing a terminal plate of a rotating electric machine according to embodiment 1 of the present application.
Fig. 6 is a perspective view showing a process for manufacturing an armature of a rotating electric machine according to embodiment 1 of the present application.
Fig. 7 is a perspective view showing a process for manufacturing an armature of a rotating electric machine according to embodiment 1 of the present application.
Fig. 8 is a schematic view showing a manufacturing process of an armature of a rotating electric machine according to embodiment 1 of the present application.
Fig. 9 is a perspective view showing a process for manufacturing an armature of a rotating electric machine according to embodiment 1 of the present application.
Fig. 10 is a schematic view showing a method of fixing a terminal plate of a rotating electric machine according to embodiment 1 of the present application.
Fig. 11 is a schematic diagram showing a terminal plate of a rotating electric machine according to embodiment 1 of the present application.
Fig. 12 is a schematic diagram showing a terminal plate of a rotating electric machine according to embodiment 2 of the present application, in which (a) is a perspective view and (B) to (E) are partially enlarged views showing the structure of a protruding portion.
Fig. 13 is a schematic diagram showing a terminal plate of a rotating electric machine according to embodiment 3 of the present application.
Fig. 14 is a schematic diagram showing a method of fixing a terminal plate of a rotating electric machine according to embodiment 3 of the present application.
Description of the symbols
100 rotating electric machines; 201 a bearing; 210 a housing; 211 a frame; 212 end plates; 300 an armature; 310 coils of wire; 311 a bobbin; 313 grooving unit; 315 a body portion; 316 wall portion; 317a holding part; 317a support wall; 317b a partition wall; 318 groove parts; 319 a convex part; 320 patch panels; 321 a power supply unit; 323 a protrusion; 324 a retaining part; 330 iron cores; 331 pole teeth; 332 a yoke portion; 400 rotors; 401 rotating a shaft; 402 a rotor core; 403 a permanent magnet; 500 of adhesive; 501 a nozzle.
Detailed Description
Fig. 1 is a schematic diagram showing a cross section of a rotating electric machine according to embodiment 1 of the present application. In fig. 1, a rotating electric machine 100 includes: a case 210, the case 210 being composed of a bottomed cylindrical frame 211 and an end plate 212, wherein the end plate 212 closes an opening of the frame 211; an armature 300 fixed to the cylindrical portion of the frame 211 in an embedded state; and a rotor 400 rotatably supported by the bottom of the frame 211 and the end plate 212 via the bearing 201, and disposed on the inner circumferential side of the armature 300.
The armature 300 is composed of a plurality of coils 310, a terminal plate 320 and a core 330, wherein the plurality of coils 310 generate magnetic flux, the terminal plate 320 distributes current to the plurality of coils 310, the core 330 circulates the magnetic flux, and the coils 310 and the core 330 are electrically insulated by a bobbin 311.
The rotor 400 is, for example, a permanent magnet type rotor, and includes: a cylindrical rotor core 402, the rotor core 402 having a rotating shaft 401 inserted in an axial position; and permanent magnets 403 embedded on the outer circumferential surface side of rotor core 402, arranged at predetermined intervals in the circumferential direction, and forming magnetic poles. The rotor 400 is not limited to the permanent magnet type rotor described above, and a so-called cage type rotor, a wound rotor, or the like may be used.
Fig. 2 is a perspective view showing the entire armature 300 of the rotating electric machine according to embodiment 1. A plurality of the following structures are radially arranged at equal intervals in the circumferential direction of the rotating shaft 401: the coil 310 is formed at both ends of the core 330 so as to sandwich the bobbin 311.
A perspective view of the coil 310 is shown in fig. 3. As shown in fig. 3, the present invention includes: a core 330 including a tooth 331 and a yoke portion 332, the yoke portion 332 connecting the tooth 331 and the tooth 331 on the outer diameter side in the circumferential direction, and being configured by laminating a plurality of steel plates; and a coil 310, wherein the coil 310 is formed by inserting a bobbin 311 made of an insulating material into both ends of a core 330 and winding a conductor wire with an insulating coating. The conductor wire may be a copper wire or an aluminum wire. The core 330 is divided into the same number of pole teeth 331 in the circumferential direction by the yoke portion 332. In embodiment 1, the cores divided in the circumferential direction are used, but the cores may be integrated cores in which all the cores 330 are connected by the yoke portion 332, or cores in which the yoke portion 332 is connected by a thin wall and can be linearly expanded.
As shown in fig. 3, one pole tooth 331 touches a sheet-shaped slot unit 313 electrically isolating the coil 310 from the core 330, and is insulated and assembled by inserting and fixing bobbins 311 at both ends of the core 330, wherein the sheet-shaped slot unit 313 is made of polyphenylene sulfide resin or meta-aramid fiber. The slot unit 313 may be fixed by attaching a double-sided tape to a side surface of the core 330.
As shown in fig. 4, the bobbin 311 includes a body portion 315, around which the coil 310 is wound, and a wall portion 316, which arranges the winding at a predetermined position. A holding portion 317 and a container-like groove portion 318 are provided on the yoke portion 332 side of the wall portion 316, wherein the holding portion 317 is provided with a comb-tooth-shaped support wall 317a for supporting the terminal block 320, and the groove portion 318 stores an adhesive for fixing the terminal block 320 to a lower portion of the holding portion 317. The groove 318 is provided between the support walls 317a of the holding portion 317 in the circumferential direction of the rotating shaft 401, and is formed in a container shape by providing partition walls 317b at both ends in the circumferential direction. In embodiment 1, the holding portion 317 is disposed on the yoke portion 332 side, but may be disposed on the rotor 400 side in consideration of the mountability to a vehicle.
Fig. 5 shows an overall view of the wiring board 320 of embodiment 1 and a partially enlarged view thereof. The wiring board 320 is formed by punching a strip-shaped conductive material by a press. The terminal block 320 includes a power supply portion 321 connected to the coil 310, a power supply portion (not shown) for supplying power, and a protrusion 323 coupled to the bobbin 311. The protrusion 323 is provided with a retaining portion 324, and the retaining portion 324 extends toward both sides in the longitudinal direction of the wiring board 320.
The manufacturing process of the armature 300 will be described with reference to fig. 6 to 9. Fig. 6 shows a state in which the cores 330 having the coils 310 are arranged in a ring shape. The core 330 is press-fitted into the frame 211 and integrated as shown in fig. 7. Here, in order to realize integration, a method of welding or bonding the cores 330 to each other may be used.
After the core 330 is integrated, as shown in fig. 8, the adhesive 500 is injected into the container-like groove 318 of the bobbin 311 using the nozzle 501. Subsequently, as shown in fig. 9, the wiring board 320 is rounded, and the protruding portion 323 is inserted so as to be dipped into the adhesive 500 stored in the groove portion 318. Fig. 10 shows the state of the groove 318, the protrusion 323, and the adhesive 500 at this time.
As can be seen from fig. 10, the protruding portion 323 of the wiring board 320 is fixed to the container-shaped groove portion 318 by the adhesive 500 stored in the container-shaped groove portion 318. Thereby, the terminal plate 320 is fixed to the integrated core 330. Since the protrusion 323 of the terminal block inserted into the groove 318 in the form of a container is fixed so as to be buried in the adhesive, the terminal block can be fixed in correspondence with the plurality of coils arranged in the circumferential direction of the rotating shaft, and the terminal block can be firmly fixed without falling off even when subjected to strong vibration as in a vehicle-mounted device.
In fig. 9, the protruding portion 323 for fixing the wiring board 320 may be provided corresponding to at least one of the plurality of coils 310, but if the plurality of protruding portions 323 are provided corresponding to the plurality of coils 310 and fixed at a plurality of positions, stronger fixing strength can be obtained. Further, the adhesive 500 required for bonding may be injected into the container-shaped groove portion 318 corresponding to the protrusion 323 to be fixed, and the use of the extra adhesive 500 can be suppressed, thereby saving the manufacturing cost.
Further, the retaining portion 324 provided in the protruding portion 323 shown in fig. 10 can increase the bonding area, and thus the wire receiving plate 320 and the bobbin 311 can be firmly fixed. In this case, it is preferable that the liquid surface of the adhesive 500 covers the top of the stopper 324 as shown in fig. 10. In this way, the adhesive 500 surrounds in the direction in which the wiring board 320 is detached, and a bonding (anchor) effect can be expected. Fig. 10 shows an example in which the retaining portion 324 protrudes through a concave portion provided in the circumferential direction of the rotating shaft 401, but the same effect can be obtained even with a structure in which a convex portion protrudes in the circumferential direction as in fig. 11.
Subsequently, the armature 300 is obtained by connecting the terminal plate 320 and the coil 310. Adhesive 500 may be a heat-curable type or a room-temperature-curable type, but in the case of heat curing, since oxidation of the conductor is affected in most cases when wiring board 320 and coil 310 are bonded, it is preferable to place it in a heat curing furnace after bonding wiring board 320 and coil 310.
Embodiment mode 2
Embodiment 2 shows an example of a structure different from the retaining portion 324 of the patch panel 320 shown in embodiment 1. In fig. 12 (a), the retaining portion 324 of embodiment 2 is configured such that a projection projects from the surface of the projection 323 in the radial direction of the rotation shaft 401. The retaining portion 324 may be formed simultaneously with the punching process in punching the wiring board 320, or may be formed after punching and before assembling to the armature. In the figure, the retaining portion 324 is formed at one position in one projection 323, but a plurality of projections may be formed, or a recessed portion may be formed. It may also be corrugated as in sheet iron.
By adopting such a configuration, when the terminal block is inserted into the groove 318 of the bobbin 311, the position of the terminal block 320 can be stably fixed by absorbing the radial displacement. As the above-described retaining portion 324 that absorbs the radial deviation, a notch that protrudes in the radial direction from the protruding portion 323 may be provided as shown in fig. 12 (B), or the tip of the protruding portion 323 may be bent as shown in fig. 12 (C).
Further, even when the protruding portion 323 is punched into a trapezoidal shape as shown in fig. 12 (D) or a hole is provided in the protruding portion 323 as shown in fig. 12 (E), the adhesion strength can be enhanced by the retaining portion 324.
Embodiment 3
Fig. 13 shows a projection 323 of the wiring board 320 of embodiment 3. In the structure of embodiment 3, the retaining portion 324 is configured such that a recessed portion is provided at the tip of the protruding portion 323 of the wiring board 320. The recess is formed in an insertion direction when the armature is assembled.
In addition, a convex portion 319 is provided in the groove portion 318 of the bobbin 311 in the axial direction of the rotation shaft 401, and configured to be fitted into a concave portion of the retaining portion 324 as shown in fig. 14. The bobbin 311 is often manufactured by injection molding of resin, and since the undercut is formed, the convex portion perpendicular to the insertion direction is easily molded.
Since the convex portion 319 provided in the groove portion of the bobbin 311 is inserted so as to be fitted into the retaining portion 324 of the concave portion of the protruding portion 323 as described above, the bonding area can be increased, and the fixing force can be improved. Further, it is possible to improve the accuracy of the mounting position to the circumferential direction of the rotating shaft 401 at the time of insertion of the terminal block 320.
While various exemplary embodiments and examples have been described in the present application, various features, modes, and functions described in one or more embodiments are not limited to the application to specific embodiments, and can be applied to the embodiments alone or in various combinations. Therefore, numerous modifications not illustrated are contemplated within the technical scope disclosed in the present specification. For example, the case where at least one component is modified, added, or omitted is included, and the case where at least one component is extracted and combined with the components of other embodiments is also included.
Claims (7)
1. A rotating electrical machine, characterized by comprising:
a bobbin provided at an end of the core and having a container-shaped groove;
a coil formed by winding a conductor wire around the bobbin; and
and a terminal plate for distributing current to the plurality of coils arranged around the rotation axis, and having a protrusion fixed to the inside of the adhesive of the container-shaped groove.
2. The rotating electric machine according to claim 1,
the plurality of protruding portions of the wiring board are provided corresponding to the plurality of coils.
3. The rotating electric machine according to claim 1 or 2,
the groove of the bobbin is provided at a lower portion of the terminal block in a circumferential direction of the rotation shaft, and is formed in a container shape by providing partition walls at both ends in the circumferential direction.
4. The rotating electric machine according to any one of claims 1 to 3,
the protruding portion of the wiring board is provided with a retaining portion.
5. The rotating electric machine according to claim 4,
the retaining portion of the terminal plate is formed by a projection or a recess in the circumferential direction of the rotating shaft.
6. The rotating electric machine according to claim 4,
the retaining portion of the terminal plate is formed by a radial projection or recess of the rotating shaft.
7. The rotating electric machine according to any one of claims 1 to 3,
the protruding portion of the terminal plate has a recessed portion in an axial direction of the rotating shaft, and the groove portion has a protruding portion in the axial direction to fit with the recessed portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-199554 | 2019-11-01 | ||
| JP2019199554A JP6949088B2 (en) | 2019-11-01 | 2019-11-01 | Rotating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112787450A true CN112787450A (en) | 2021-05-11 |
Family
ID=75713856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011124618.0A Pending CN112787450A (en) | 2019-11-01 | 2020-10-20 | Rotating electrical machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6949088B2 (en) |
| CN (1) | CN112787450A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105830311A (en) * | 2013-12-19 | 2016-08-03 | 三菱电机株式会社 | Rotating electric machine |
| JP6279122B1 (en) * | 2017-04-04 | 2018-02-14 | 三菱電機株式会社 | Rotating electric machine |
| JP2018196171A (en) * | 2017-05-12 | 2018-12-06 | 株式会社デンソー | Armature and motor |
| WO2019189309A1 (en) * | 2018-03-29 | 2019-10-03 | 日本電産株式会社 | Motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5114138B1 (en) * | 1970-11-10 | 1976-05-07 | ||
| JPS5043715Y2 (en) * | 1972-04-21 | 1975-12-13 | ||
| JPS5077750U (en) * | 1973-11-16 | 1975-07-05 | ||
| JPH08140302A (en) * | 1994-11-10 | 1996-05-31 | Nippondenso Co Ltd | Stator of magnet generator |
| JP5060839B2 (en) * | 2007-06-12 | 2012-10-31 | 富士重工業株式会社 | Electric motor |
| JP5946666B2 (en) * | 2012-03-21 | 2016-07-06 | 日立オートモティブシステムズ株式会社 | Electric actuator |
| JP6339041B2 (en) * | 2015-03-23 | 2018-06-06 | ミネベアミツミ株式会社 | MOTOR STATOR, MOTOR, AND METHOD FOR MANUFACTURING MOTOR STATOR |
| JP6598923B1 (en) * | 2018-05-09 | 2019-10-30 | 三菱電機株式会社 | Motor stator and method of manufacturing the same |
-
2019
- 2019-11-01 JP JP2019199554A patent/JP6949088B2/en active Active
-
2020
- 2020-10-20 CN CN202011124618.0A patent/CN112787450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105830311A (en) * | 2013-12-19 | 2016-08-03 | 三菱电机株式会社 | Rotating electric machine |
| JP6279122B1 (en) * | 2017-04-04 | 2018-02-14 | 三菱電機株式会社 | Rotating electric machine |
| JP2018196171A (en) * | 2017-05-12 | 2018-12-06 | 株式会社デンソー | Armature and motor |
| WO2019189309A1 (en) * | 2018-03-29 | 2019-10-03 | 日本電産株式会社 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021072738A (en) | 2021-05-06 |
| JP6949088B2 (en) | 2021-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107820660B (en) | Stator for an electric machine and method for producing such a stator | |
| US11456632B2 (en) | Consequent-pole type rotor, electric motor, air conditioner, and method for manufacturing consequent-pole type rotor | |
| US6177751B1 (en) | Rotary electric machine and bobbin thereof | |
| JP5519808B2 (en) | Stator and rotating electric machine including the stator | |
| CN111342587B (en) | Rotating electrical machine | |
| US9608494B2 (en) | Rotating electrical machine with brush holder | |
| CN111684687B (en) | Wire holding device | |
| US9985401B2 (en) | Direct current motor | |
| CN104283392A (en) | Motor and brushless direct current motor | |
| CN113258704A (en) | Coil skeleton, stator core and distributed winding radial gap type rotating electrical machine | |
| JP2009213311A (en) | Bobbin for stator for dynamo-electric machine and its manufacturing method | |
| CN101621237B (en) | Brushless DC motor | |
| KR20160094158A (en) | Motor | |
| CN113302820A (en) | Electric machine | |
| CN112787451A (en) | Rotating electrical machine and method for manufacturing rotating electrical machine | |
| KR100520548B1 (en) | Structure for assembling armature coil in slotless brushless dc motor | |
| JP2009296696A (en) | Rotor | |
| JP2010141965A (en) | Stator, rotary electric machine, method of manufacturing the stator, and method of manufacturing the rotary electric machine | |
| CN112787450A (en) | Rotating electrical machine | |
| JP2022500987A (en) | motor | |
| JPH11215745A (en) | Electric motor and formation of stator core | |
| CN107306514B (en) | Rotating electrical machine | |
| CN101572459A (en) | Motor | |
| WO2024127740A1 (en) | Motor | |
| KR101595119B1 (en) | Outer rotor type fan motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |