CN1684346A - Coreless motor and its producing and assembling method - Google Patents
Coreless motor and its producing and assembling method Download PDFInfo
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- CN1684346A CN1684346A CN 200410017668 CN200410017668A CN1684346A CN 1684346 A CN1684346 A CN 1684346A CN 200410017668 CN200410017668 CN 200410017668 CN 200410017668 A CN200410017668 A CN 200410017668A CN 1684346 A CN1684346 A CN 1684346A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005284 excitation Effects 0.000 claims abstract description 49
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 20
- 230000000694 effects Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
This invention relates to a coreless motor and its manufacture and assembly method, among which, the coreless motor includes a magnetic shell, a circle excitation magnetite set in the shell, a shaft and a bearing component characterizing in designing an open-end at the bottom of the shell, filling a resin material in the hollow part of the magnetite from the open-end to blockage the open-end and form a bearing at the end of the loading shaft. The method includes: 1, preparing and manufacturing spare parts of the motor and resin material, 2, putting the magnetite in the shell to be filled with the resin and fixed to form a bearing, 3, installing coils, a commutator, the shaft and the bearing component in the shell.
Description
Technical Field
The present invention relates to motors, and more particularly, to a coreless motor and methods of manufacturing and assembling the coreless motor.
Background
Japanese patent No. 2557 (hei 5) in 1993 discloses a coreless motor having a cylindrical motor case, an excitation magnet provided in an inner space of the motor case, a shaft, and a bearing provided in a hollow of the annular excitation magnet; the function principle is that the effect of bearing the force of the shaft in the axial direction is achieved through the bearing arranged in the hollow of the excitation magnet.
The above prior art coreless motors have drawbacks in the actual manufacturing and operation processes: since the force of the shaft in the axial direction is received by the bearing provided in the hollow of the field magnet, which also receives the force of the shaft in the radial direction of the shaft, the prior art coreless motor must have a bearing provided between the coil and the outer peripheral surface of the shaft. Therefore, the required number of parts is increased, the cost is increased, and the time and labor are wasted due to the increase of the bearing assembling process in the assembling aspect of the bearing.
Disclosure of Invention
The invention provides a coreless motor and a method for manufacturing and assembling the same, which can reduce the number of required product parts, shorten the manufacturing and assembling procedures, thereby reducing the cost and simplifying the manufacturing and assembling.
The purpose of the invention is realized as follows:
a coreless motor, the coreless motor comprising: a magnetic motor case, which is a cylindrical motor case composed of a case bottom and a case side; the annular excitation magnet is arranged in the motor shell; a shaft located in the center of the motor case and having one end sleeved in the annular excitation magnet; a coil disposed in a gap between the ring-shaped field magnet and the motor case; a commutator fixedly arranged in one side end of the coil; a bearing part which is arranged at the front side end of the motor shell to form the front part of the motor shell and realizes the bearing function of the shaft; the method is characterized in that:
the bottom of the motor shell is provided with an opening part, the middle part of the motor shell, namely the center of the annular excitation magnet, forms a hollow part, and the opening part is communicated with the hollow part;
filling a resin material into a hollow and opening part in the center of the motor casing;
the outer part of the solidified resin material is embedded in the opening part of the bottom of the sealed motor shell, the bottom of the motor shell is formed into a sealed shape, and the inner part of the solidified resin material forms a bearing for receiving one end of the shaft.
In the coreless motor, the bearing has a large diameter and is shaped like "コ", an inner diameter of the concave portion of the bearing is larger than an outer diameter of the shaft, one end of the shaft is positioned in the concave portion of the bearing, and the outer diameter of the shaft is rotatably fitted to the inner diameter of the concave portion of the bearing.
In the coreless motor, a gap portion formed of a resin material is provided in a gap between the bottom of the motor case and the field magnet, and the gap portion is fixed between the motor case and the field magnet.
In the coreless motor, the shoulder of the bearing abuts against one end of the inner side of the field magnet, and the gap abuts against one end of the outer side of the field magnet.
In the coreless motor, the opening of the bottom of the motor housing is tapered inward from the inlet.
A method for manufacturing and assembling the coreless motor is characterized by comprising the following steps:
respectively preparing and manufacturing each part forming the coreless motor and a resin material in a liquid flowing state;
secondly, placing the excitation magnet in a motor shell and fixing the excitation magnet;
and step three, sequentially installing the coil, the commutator, the shaft and the bearing part into the motor shell.
In the above method for manufacturing and assembling a vibration motor, wherein, in the second step, the specific step of placing and fixing the excitation magnet in the motor casing is,
2-1, placing the excitation magnet in a motor shell,
2-2, filling the resin material in a liquid flowing state into the hollow space in the center of the motor casing and the gap between the bottom of the motor casing and the excitation magnet from the opening part arranged on the bottom of the motor casing,
and 2-3, waiting for the resin material to solidify, wherein the solidified resin material forms a bearing and a gap part which can bear one end of the shaft, and the bearing and the gap part clamp the excitation magnet and fixedly connect the excitation magnet and the motor shell together.
In the above method of manufacturing and assembling the vibration motor, wherein in the third step, the specific mounting step of sequentially mounting the coil, the commutator, the shaft and the bearing part into the motor casing is,
3-1, arranging the coil in the gap between the excitation magnet and the motor shell,
3-2, fixedly arranging the outer peripheral part of one side of the commutator in one side end of the coil by an adhesive,
3-3, mounting a commutator composed of commutator sub-groups on the outer periphery of the commutator,
3-4, two electric brushes are arranged at the corresponding positions of the commutator,
3-5, the shaft passes through a shaft through hole in the center of the commutator, one end of the inner side of the shaft is arranged in a concave part of the bearing,
3-6, pressing the bearing part with brush holding part on its end into one end of the front side of the motor casing to combine with the motor casing,
3-7, arranging eccentric copper separating at the front end of the shaft according to requirements.
Compared with the prior art, the coreless motor and the manufacturing and assembling method thereof have the following advantages and positive effects due to the adoption of the technical scheme:
1. the center of the annular excitation magnet in the middle of the motor is formed into a hollow shape, the bottom of the motor shell is provided with the opening part which is communicated with the hollow, when the opening part at the bottom of the motor shell is filled with the resin material in a liquid flowing state, the liquid resin material flows into the hollow interior for filling, and the solidified resin material forms the bearing for bearing one end of the shaft, so that additional bearing parts do not need to be added, the number of the parts is reduced, the assembly process of the bearing is also omitted, the assembly process of the coreless motor is simplified, and the cost is reduced;
2. the bearing at one end of the bearing shaft formed by solidifying the resin material has a diameter larger than the inner diameter of the hollow part of the excitation magnet, so that the shaft does not enter the hollow part of the excitation magnet, and the bearing positioned at the outer side of the excitation magnet starts to bear one end of the shaft, thereby reducing the hollow length of the excitation magnet and realizing the miniaturization of the whole coreless motor;
3. the diameter of the bearing and the clearance part which are molded by resin material is larger than the hollow diameter of the excitation magnet, the bearing is propped against one end of the inner side of the excitation magnet through the shoulder part of the bearing, and the clearance part is propped against one end of the outer side of the excitation magnet, so that the excitation magnet is clamped from two sides and is fixed with the motor shell;
4. the invention makes the opening part of the bottom of the motor casing form a cone shape which is gradually narrowed from the inlet to the inner, thereby leading the resin material in a liquid flowing state to be filled smoothly along the cone surface from the inlet of the opening part.
Drawings
The objects, specific structural features and advantages of the present invention will be further understood from the following description of several embodiments of the coreless motor of the present invention, and the method of making and assembling the coreless motor of the present invention, taken in conjunction with the accompanying drawings. Wherein,
the attached drawings are as follows:
FIG. 1 is a schematic cross-sectional view of a coreless motor according to an embodiment of the present invention;
figure 2 is a cross-sectional view of another embodiment of a coreless motor of the present invention.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a coreless motor according to a first embodiment of the present invention. In this embodiment, the coreless motor 1 of the present invention is composed of a motor housing 3, a ring-shaped field magnet 5 provided in the motor housing 3, a shaft 11, a coil 7, a commutator 10, and a bearing portion 15 provided at the front end of the motor housing 3.
The motor housing 3 is made of a magnetic material and has a cylindrical shape formed by a housing bottom 16 and a housing side 19, the thickness of the bottom 16 of the motor housing 3 is larger than that of the side 19, and the bottom 16 of the motor housing 3 is provided with an opening 17 having a wide entrance.
The excitation magnet 5 and the shaft 11 are disposed in the motor case 3, and the coil 7 is disposed in a gap between the excitation magnet 5 and the motor case 3; a commutator 10 is fixed in one side end of the coil 7; the bearing portion 15 is provided at the front side end of the motor housing 3, and it not only blocks one end of the housing 3 but also achieves the bearing function of the shaft 11.
In the present invention, the excitation magnet 5 is annular, and a hollow 21 is formed in the middle of the motor case 3, that is, in the center of the annular excitation magnet 5, and the hollow 21 penetrates the opening 17. Filling the resin material 6 in the hollow 21 and the opening 17 in the center of the motor housing 3; the resin material 6 is filled into the hollow portion 21 from the opening portion 17 of the motor housing 3 described above, and the excitation magnets 5 are fixed to the motor housing 3 by curing the resin material 6. The method of arranging the field magnets 5 is not limited to the continuity in the rotational direction, and may be arranged discontinuously in the rotational direction.
After the resin material 6 is filled into the hollow portion 21 from the opening 17 of the motor housing 3, the solidified resin material 6 is cured, so that the outer portion of the solidified resin material 6 is fitted into the opening 17 of the bottom portion 16 of the motor housing 3, the bottom portion 16 of the motor housing 3 is sealed, and the inner portion of the solidified resin material 6 forms a bearing 6a for receiving one end of the shaft 11.
As can be seen from fig. 1, the diameter of the resin material 6 filled in the hollow 21 of the field magnet 5 is certainly larger from one end face of the ring-shaped field magnet to the inside of the hollow 21, and the bearing 6a has a large diameter and a protruding portion in the shape of "コ" in a cross-sectional view, the inner diameter of the recess 20 of the コ -shaped bearing 6a is larger than the outer diameter of the shaft 11, one end of the shaft 11 is located in the recess 20 of the bearing 6a, and the outer diameter of the shaft 11 is rotatably fitted to the inner diameter of the recess 20 of the bearing 6a, so that the shaft 11 can freely rotate in the recess of the bearing 6 a.
The resin material 6 filled from the opening 17 of the motor housing 3 is also filled into the gap between the bottom 16 of the motor housing 3 and the field magnet 5 to form a gap portion 6C, and the gap portion 6C is fixed between the motor housing 3 and the field magnet 5 to fix the motor housing 3 and the field magnet 5 together.
Further, since the diameter of the bearing 6a and the gap portion 6C molded from a resin material is larger than the diameter of the hollow 21, the shoulder portion 6a1 of the bearing 6a abuts against the inner end of the field magnet 5, and the gap portion 6C abuts against the outer end of the field magnet 5, thereby sandwiching and fixing the field magnet 5 from both sides.
The commutator 10 is a resin molded product, and an outer peripheral portion of one side of the commutator 10 is fixed to one side end of the coil 7 by means of an adhesive or the like. A commutator 9 formed of a commutator sub-group is provided on the outer periphery of the commutator 10.
The bearing portion 15 is made of a resin material, and the bearing portion 15 is press-fitted into one side end surface of the motor housing 3 to be coupled to the motor housing 3. Further, a recess 23 is formed inside the bearing portion 15, and the tip end portion of the commutator segment 10 is fitted into the recess 23. At the entrance portion of the recess 23 of the bearing 15, a pair of brush holding portions 25 are integrally formed with the bearing 15. One brush 27 is provided in each brush holding portion 25, and both brushes 27 are brought into contact with the commutator 9 at positions opposed thereto. One of the two brushes 27 is connected to a positive power supply terminal via a lead, and the other brush 27 is connected to a negative power supply terminal via a lead.
The inner end of the shaft 11 extends through the bearing portion 15 into the recess 20 of the bearing 6 a. The front end of the shaft 11 is provided with an eccentric copper separator 29; the central part of the shaft 11 is arranged in a bearing part 15 which is positioned at the front side end of the motor shell 3 and forms the front part of the motor shell, and the bearing part 15 fixed at the front part of the shell realizes the bearing function of the shaft 11; the bearing 6a provided at a position protruding from the inside of the hollow 21 of the field magnet 5 receives the rear end of the shaft 11. Further, the rotation of the shaft 11 is restricted by the engagement of the protrusion 31 provided in the shaft through hole 13 of the commutator 10 and the recess 32 on the shaft 11 side.
Fig. 2 is a schematic cross-sectional view of another coreless motor according to another embodiment of the present invention. The present embodiment is different from the first embodiment in that the opening 17 of the bottom 16 of the motor housing 3 in the present embodiment has a conical shape gradually narrowing inward from the entrance. The conical opening 17 has an advantage that when the resin material 6 is filled into the hollow portion 21 from the opening 17, the resin material 6 can smoothly enter the hollow portion 21 in the center of the motor housing 3 along the conical opening 17, so that the filling operation of the resin material 6 can be smoothly performed.
Of course, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. In the above-described embodiment, the shape of the opening 17 in the inward direction from the entrance may be changed to a flat shape.
In the above embodiment, the front end of the shaft 11 may be provided with the eccentric copper 29, or the eccentric copper 29 may not be provided.
Referring to fig. 1 and 2, a method for manufacturing and assembling the coreless motor of the present invention includes the following steps:
step one, preparing and manufacturing each part forming the coreless motor 1 and a resin material 6 in a liquid flowing state;
secondly, the excitation magnet 5 is placed in the motor shell 3 and fixed, and the specific steps are,
2-1, placing an excitation magnet 5 in a motor shell 3,
2-2, filling the resin material 6 in a liquid flowing state into a hollow 21 in the center of the motor housing 3 and a gap 6C between the bottom 16 of the motor housing 3 and the field magnet 5 from an opening 17 provided in the bottom 16 of the motor housing 3,
2-3, waiting for the resin material 6 to solidify, wherein the solidified resin material 6 forms a bearing 6a and a gap part 6C which can bear one end of the shaft 11, the bearing 6a and the gap part 6C clamp the excitation magnet 5 and fixedly connect the excitation magnet 5 and the motor shell 3 together;
step three, the coil 7, the commutator 10, the shaft 11 and the bearing part 15 are installed in the motor casing 3 in sequence, the specific installation steps are,
3-1, disposing the coil 7 in a gap where the coil 7 is disposed between the field magnet 5 and the motor case 3,
3-2, fixedly disposing the outer peripheral portion of one side of the commutator 10 in one side end of the coil 7 by an adhesive,
3-3, a commutator 9 composed of a commutator sub-group is mounted on the outer periphery of the commutator 10,
3-4, two brushes 27 are arranged at corresponding positions of the commutator 9,
3-5, the shaft 11 is passed through the shaft through hole 13 in the center of the commutator 10, the inner end of the shaft 11 is seated in the recess 20 of the bearing 6a,
3-6, the bearing part 15 with the brush holding part 25 at the end is pressed into the front end face of the motor housing 3 to be combined with the motor housing 3.
3-7, and an eccentric copper separator 29 is arranged at the front end of the shaft 11 according to requirements.
As can be seen from this, since the resin material 6 flows into the hollow 21 of the field magnet 5 from the opening 17 provided in the motor case bottom 16, the bearing 6a for receiving one end of the shaft 11 is formed, and therefore, no additional bearing member is required, and cost reduction is achieved while reducing the number of components.
Further, according to the above method, since the bearing does not need to be assembled, the assembly of the coreless motor 1 is simplified, and the manufacturing time of the coreless motor 1 is shortened, which is more advantageous for the reduction of the cost of the product.
In summary, the coreless motor and the method for manufacturing and assembling the coreless motor according to the present invention are configured such that the opening is formed at the bottom of the motor housing, and the resin material in a liquid flowing state is filled into the opening at the bottom of the motor housing, thereby fixing the field magnet to the motor housing and forming the bearing for receiving one end of the shaft, and thus reducing the number of bearing components and the number of assembling processes, thereby reducing the cost of the coreless motor; meanwhile, the shaft does not enter the hollow interior of the excitation magnet, but one end of the shaft is supported by the bearing positioned outside the excitation magnet, so that the hollow length of the excitation magnet can be shortened, and the integral miniaturization of the coreless motor is realized; in addition, the opening part at the bottom of the motor shell is in a conical shape which is gradually narrowed from the inlet to the inside, so that the resin material in a liquid flowing state can be smoothly filled along the conical surface from the inlet of the opening part; and is therefore extremely practical.
Claims (8)
1. A coreless motor, the coreless motor (1) comprising:
a magnetic motor case (3), the motor case (3) is a cylindrical motor case (3) formed by a case bottom (16) and a case side (19);
an annular excitation magnet (5) disposed in the motor case (3);
a shaft (11) located in the center of the motor housing (3) and having one end fitted in the ring-shaped field magnet (5);
a coil (7) disposed in a gap between the ring-shaped field magnet (5) and the motor case (3);
a commutator (10) fixedly arranged in one side end of the coil (7);
a bearing part (15) which is arranged at the front side end of the motor shell (3) to form the front part of the motor shell and plays a bearing role for the shaft (11);
the method is characterized in that:
an opening part (17) is arranged at the bottom (16) of the motor shell (3), a hollow part (21) is formed in the middle of the motor shell (3), namely the center of the annular excitation magnet (5), and the opening part (17) is communicated with the hollow part (21);
a hollow (21) and an opening (17) in the center of the motor casing (3) are filled with a resin material (6);
the outer part of the solidified resin material (6) is embedded in an opening (17) of a bottom (16) of the motor shell (3) in a sealed mode, the bottom (16) of the motor shell (3) is formed in a sealed mode, and a bearing (6a) for receiving one end of the shaft (11) is formed in the inner side part of the solidified resin material (6).
2. The coreless motor of claim 1, wherein: the bearing (6a) is large in diameter and in the shape of 'コ', the inner diameter of a concave part (20) of the bearing (6a) is larger than the outer diameter of the shaft (11), one end of the shaft (11) is located in the concave part (20) of the bearing (6a), and the outer diameter of the shaft (11) is rotatably matched with the inner diameter of the concave part (20) of the bearing (6 a).
3. The coreless motor of claim 1, wherein: a resin material (6) is arranged in a gap between the bottom (16) of the motor shell (3) and the excitation magnet (5) to form a gap part (6C), and the gap part (6C) is fixed between the motor shell (3) and the excitation magnet (5).
4. The coreless motor of claim 1 or 3, wherein: the shoulder part (6a1) of the bearing (6a) is clamped against one end of the inner side of the excitation magnet (5), and the gap part (6C) is clamped against one end of the outer side of the excitation magnet (5).
5. The coreless motor of claim 1, wherein: the opening (17) of the bottom (16) of the motor casing (3) is in a conical shape gradually narrowing from the inlet to the inside.
6. A method of making and assembling the coreless motor, comprising the steps of:
step one, preparing and manufacturing each part forming the coreless motor (1) and a resin material (6) in a liquid flowing state;
secondly, placing and fixing the excitation magnet (5) in the motor shell (3);
and step three, sequentially installing the coil (7), the commutator (10), the shaft (11) and the bearing part (15) into the motor shell (3).
7. The method of making and assembling a vibratory motor as set forth in claim 6 wherein: in the second step, the specific step of placing and fixing the excitation magnet (5) in the motor shell (3) is that,
2-1, placing an excitation magnet (5) in a motor shell (3),
2-2, filling the resin material (6) in a liquid flowing state into a hollow (21) in the center of the motor housing (3) and a gap (6C) between the bottom (16) of the motor housing (3) and the excitation magnet (5) from an opening (17) provided in the bottom (16) of the motor housing (3),
and 2-3, waiting for the resin material (6) to solidify, wherein the solidified resin material (6) forms a bearing (6a) and a gap part (6C) which can bear and receive one end of the shaft (11), and the bearing (6a) and the gap part (6C) clamp the excitation magnet (5) and fixedly connect the excitation magnet (5) and the motor shell (3).
8. The method of making and assembling a vibratory motor as set forth in claim 6 wherein: in the third step, the specific mounting step of sequentially mounting the coil, the commutator, the shaft and the bearing part into the motor casing is,
3-1, placing the coil (7) in the gap between the excitation magnet (5) and the motor case (3),
3-2, fixedly arranging the outer peripheral part of one side of the commutator (10) in one side end of the coil (7) through an adhesive,
3-3, a commutator (9) composed of a commutator sub-group is mounted on the outer periphery of the commutator (10),
3-4, two electric brushes (27) are arranged on the corresponding positions of the commutator (9),
3-5, a shaft (11) is inserted through a shaft through hole (13) in the center of the commutator (10), one end of the inner side of the shaft (11) is arranged in a concave part (20) of the bearing (6a),
3-6, a bearing portion (15) having a brush holding portion (25) at an end portion thereof is press-fitted into an end surface of a front side of the motor case (3) to be combined with the motor case (3),
3-7, and arranging an eccentric copper separator (29) at the front end of the shaft (11) according to requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100176683A CN100452623C (en) | 2004-04-14 | 2004-04-14 | Coreless motor and its producing and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100176683A CN100452623C (en) | 2004-04-14 | 2004-04-14 | Coreless motor and its producing and assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1684346A true CN1684346A (en) | 2005-10-19 |
| CN100452623C CN100452623C (en) | 2009-01-14 |
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ID=35263525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100176683A Expired - Fee Related CN100452623C (en) | 2004-04-14 | 2004-04-14 | Coreless motor and its producing and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100452623C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039051B (en) * | 2006-03-14 | 2010-12-22 | 日本电产三协株式会社 | Stator structure of motor |
| CN102263467A (en) * | 2010-05-26 | 2011-11-30 | 精工爱普生株式会社 | Coreless Electromechanical Devices |
| CN102290885A (en) * | 2010-06-16 | 2011-12-21 | 思考电机（上海）有限公司 | Coreless motor, coreless vibration motor and mobile terminal device |
| CN103122827A (en) * | 2011-11-18 | 2013-05-29 | 思考电机（上海）有限公司 | Wind power generating device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5463307A (en) * | 1977-10-31 | 1979-05-22 | Matsushita Electric Works Ltd | Outer rotor motor |
| JPS54141309U (en) * | 1978-03-24 | 1979-10-01 | ||
| JPH052557U (en) * | 1991-06-21 | 1993-01-14 | 並木精密宝石株式会社 | Coreless motor |
| JP2761175B2 (en) * | 1993-09-13 | 1998-06-04 | 並木精密宝石株式会社 | Coreless motor device |
| JPH11215764A (en) * | 1998-01-29 | 1999-08-06 | Tokyo Parts Ind Co Ltd | Flat-type brushless motor equipped with resin-made bearing |
| JP2000050597A (en) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Thin cylindrical coreless motor and battery-driven device using the same |
| JP2000295830A (en) * | 1999-04-06 | 2000-10-20 | Namiki Precision Jewel Co Ltd | Coreless motor |
-
2004
- 2004-04-14 CN CNB2004100176683A patent/CN100452623C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039051B (en) * | 2006-03-14 | 2010-12-22 | 日本电产三协株式会社 | Stator structure of motor |
| CN102263467A (en) * | 2010-05-26 | 2011-11-30 | 精工爱普生株式会社 | Coreless Electromechanical Devices |
| CN102290885A (en) * | 2010-06-16 | 2011-12-21 | 思考电机（上海）有限公司 | Coreless motor, coreless vibration motor and mobile terminal device |
| CN103122827A (en) * | 2011-11-18 | 2013-05-29 | 思考电机（上海）有限公司 | Wind power generating device |
| CN103122827B (en) * | 2011-11-18 | 2015-04-29 | 思考电机（上海）有限公司 | Wind power generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100452623C (en) | 2009-01-14 |
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