WO2006033206A1 - ステッピングモータ - Google Patents
ステッピングモータ Download PDFInfo
- Publication number
- WO2006033206A1 WO2006033206A1 PCT/JP2005/014572 JP2005014572W WO2006033206A1 WO 2006033206 A1 WO2006033206 A1 WO 2006033206A1 JP 2005014572 W JP2005014572 W JP 2005014572W WO 2006033206 A1 WO2006033206 A1 WO 2006033206A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mounting plate
- mold case
- stepping motor
- stator
- mold
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/08—Insulating casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
- H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
- H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Definitions
- the present invention relates to a stepping motor that includes a mounting plate that allows mounting in a small space without requiring a special structure for mounting, and that has improved cooling capacity.
- FIG. 5 is a view showing a conventional mounting mode, and is exemplified in FIGS. 5 (a), 5 (b), and 5 (c).
- FIG. 5 (a) is a view showing an attachment mode a using the conventional mounting bracket.
- a housing for accommodating a rotating machine element such as a rotor stator is constituted by a front housing 101 and a rear housing 102, and the housing 101 and 102 accommodate the rotating machine element.
- Open holes 105 are provided in mounting flanges 103, 104 protruding outside the substantially cylindrical housing, and bolts 106 or crimping fittings are inserted into the openings 105, so that both wings 101, 102 Is fixed with nut 107 etc.
- the bolt hole 109 of the mounting bracket 108 provided with the mounting opening 110 is also aligned with the opening 105, and the mounting bracket 108 and the housings 101 and 102 are fixed together with the bolt 106 or the crimping bracket. .
- the motor is limited to an ultra-small stepping motor that is mounted on a digital camera or the like, for example, an aspect in which force mounting that is intended to prevent shaft misalignment is performed using a mounting plate with a bearing portion b (for example, see Patent Document 2).
- FIG. 5 (b) is a diagram showing a mounting mode b using the conventional mounting plate with a bearing portion.
- a mounting plate 113 that abuts the outer surface of the second outer magnetic pole 112 is formed integrally with the bearing portion 114 with a molding material suitable for the bearing member, and the bearing portion 114 is formed on the second inner magnetic pole. Cylinder in magnetic pole Insert into the hollow part 115 and fix.
- FIG. 5 (c) is a diagram showing a mounting mode c using this molded stator structure.
- stator yoke 116 and the coil 117 are resin molded 118
- most of the heat generated from the stator yoke 116 and the coil 117 is bracketed via the resin mold 118. It flows to 119 and is dissipated. The heat is transferred through the coil 117 and dissipated in the axial direction.
- natural heat dissipation from the resin mold 118 to the jacket is hardly expected. For this reason, how the heat generated in the stator yoke 116 and the coil 117 can be transferred to the bracket 119 is the most important for cooling.
- the coil 117 is wound around a bobbin that is an insulator.
- the coil 117 is an electric copper as a good heat conductor, and the circumferential direction is covered with an insulating film. For this reason, the heat generated from the shoreline is mainly heat.
- the thermal conductivity in the axial direction of the laminate of the electromagnetic steel sheets is very poor compared to the circumferential direction or radial direction. Therefore, the heat generated by the core force flows in the radial direction from the axial direction and is transmitted to the bracket 119 through the resin mold 118.
- the material of the bracket 119 is metal, and the thermal conductivity of the mold resin is poor compared to them. For this reason, how to transfer the heat generated in the coil to the bracket 119 becomes a problem.
- the thermal conductivity of the molded stator is improved as shown above, the cooling performance of the resin-molded armature can be improved, and the armature that is most likely to have the highest temperature in the motor. Can be effectively cooled, and as a result, the entire rotating electrical machine can be efficiently cooled.
- Patent Document 1 Japanese Patent Laid-Open No. 2004-048908
- Patent Document 2 Japanese Patent Laid-Open No. 2003-235235
- Patent Document 3 Japanese Patent Laid-Open No. 2001-231192
- the shape of the housing is a substantially cylindrical shape only for housing a rotating machine element. From the shape, an extra mounting flange is projected to the outside, which increases the storage space, requires an extra structure for the flange, and makes the outer shape ideally cylindrical. I can't do it,
- a molded stator structure in which a resin mold material is sealed between the stator yoke and the coil and heat is radiated through the mold material is generally performed.
- this structure there is a structural limit in realizing a reduction in size and weight in a rotating electrical machine that dissipates heat through a resin mold material that has extremely poor heat transfer in the axial direction.
- the thickness of the conventional resin mold is molded almost uniformly over the entire circumference of the stator yoke.
- the amount of heat generated by the stator yoke and coil force is mainly transmitted in the radial direction and hardly transmitted in the axial direction.
- the generated heat is first transferred in the radial direction of the rotating electric machine, then transferred from the bracket to the mounting flange through the outer peripheral resin mold, and dissipated and cooled. Therefore, it is important how the generated heat is conducted in the axial direction to dissipate heat from the mounting member such as a bracket.
- the object of the present invention is to downsize the outer shape of the housing in consideration of heat dissipation. Then
- Both are to provide a stepping motor in which the mounting plate can be arranged in a space-saving manner.
- the present invention employs the following solutions.
- the mold case and the mounting plate are filled with the resin provided at the periphery of the annular plate portion of the mounting plate! It is attached by a locking part formed by filling the locking part.
- the embedding protrusion of the mounting plate is fixed to the mold case by molding.
- the mounting plate, the terminal portion of the bobbin, and the end plate are held by the front block portion and the rear block portion of the molded mold case.
- the heat generated around the coil and the stator yoke is also radiated from the outer surface force of the pole teeth of the stator yoke exposed on the outer surface of the mold case.
- the generated heat is radiated from the bearing end face exposed on the outer surface of the mold case via the bearing.
- a stepping motor has a circular opening in the center, a mounting plate provided with a locked portion on the periphery of the annular plate portion, a locking portion, and a stator and a rotor that form a magnetic path.
- the locked portion is locked by the locking portion, and the mounting plate is attached to the mold case.
- the mounting plate includes the annular plate portion and a rectangular plate portion connected to the annular plate portion, and the rectangular plate portion is provided with an embedding protrusion.
- the embedding protrusion is embedded in the mold case.
- the locked portion is discontinuously provided on the periphery of the annular plate portion.
- the mounting plate of the present invention has a peripheral edge of an annular plate portion having an area that falls within the area of the axial end surface of the motor.
- a step is provided on the mounting plate, and the annular plate part of the mounting plate is in contact with the end surface of the half (half divided into two) stators. Since the mold is formed at the same time as the other filling parts, the mounting plate can be fixed simultaneously with the formation of the mold case. At the same time, since the embedding protrusions formed on the rectangular plate portion of the mounting plate are fixed with grease during molding, the mounting plate is firmly fixed.
- the mounting plate and the terminal portion of the bobbin are connected by the block portion formed by resin molding, the mounting plate is more firmly fixed.
- the terminal portion of the bobbin is fixed by the molded end plate and the block portion connected to the end plate, the terminal portion and the magnetic pole can be prevented from being affected by vibration.
- the heat generated by the coil and stator yoke force is applied to the resin mold member.
- the air was conducted in the radial direction of the motor, flowed to the bracket, transferred to the mounting flange, and dissipated.
- the heat generated in the coil and the stator yoke as the heat generating parts is short from the outer surface of the pole teeth of the stator yoke exposed on the outer surface of the case, and directly dissipates heat through the path.
- Heat is radiated from the end face of the bearing exposed outside the case through a bearing connected to the yoke. Expected to further dissipate heat from the bearing through the rotating shaft.
- the coil and the stator yoke can be effectively cooled, and the motor can be reduced in size and weight.
- FIG. 1 is a perspective sectional view of the stepping motor of the present invention
- FIG. 2 is a perspective view of the stepping motor of the present invention
- FIG. 3 is a sectional view of the stepping motor of the present invention.
- the claw pole type stepping motor 10 of the present invention is roughly composed of a rotor 11, a stator 12, a mold case 13, and a mounting plate 14.
- the rotor 11 includes a substantially cylindrical rotor magnet 21 and a rotating shaft 22.
- the rotor magnet 21 is made of a ferromagnetic material, has a through hole in the center, and alternately forms N magnetic poles and S magnetic poles in one direction on the outer peripheral surface.
- the N magnetic pole and S magnetic pole are formed so as to oppose the comb-shaped pole teeth of the stator yoke 26 described later.
- the rotary shaft 22 is inserted into the through hole of the rotor magnet 21, and the spacers 23 and 24 having through holes are attached from both sides of the rotary shaft 22.
- Spacers 23 and 24 are made of a resin material with good sliding properties.
- the stator 12 is formed in two phases. Each phase is roughly divided into stator yoke 26, coil
- the coil 28 is composed of a coil 28a and a coil 28b, and is configured by winding a copper electric wire provided with an insulating coating such as enamel in the U-shaped groove of the coil bobbin 29 as many times as necessary.
- the coil bobbin 29 is made of an insulating synthetic resin, and includes a coil storage portion 29a and a coil storage portion 29b. Made.
- the coil storage portions 29a and 29b are U-shaped grooves having an opening outward in the radial direction, and the opening is covered with a synthetic resin insulating sheet 32a and 32b in a state in which the coil 28 is stored. Cover the outer insulation of 32a and 32b with insulation ring 14a. 33a and 33b. 0 Insulation sheaths 32a and 32b and cover rings 33a and 33b cover coil 28 with dust, dust, moisture, etc. Prevent unwanted material from sticking.
- the terminal portion 29c and the terminal portion 29d are grooves having a U-shaped cross section provided so as to face each other in the length direction of the rotating shaft 22, as shown above the rotating shaft 22 in FIGS.
- the coil storage portions 29a and 29b are formed in an L shape.
- the terminal portions 29c and 29d are arranged so that partial regions including the terminals 34a and 34b protrude from the mold case 13.
- the stator yoke 26 includes first and second stator yokes 26a and 26d and second stator yokes 26b and 26e, which also have a soft magnetic material force such as SECC (electrogalvanized steel plate), silicon steel plate, and SUY (electromagnetic soft iron plate). 3 Consists of stator yokes 26c and 26f and constitutes a magnetic path.
- the first stator yokes 26a, 26d have a plurality of pole teeth 30a equally provided around the annular plate, and the pole teeth 30a are bent at right angles to the annular plate, for example, a shape like a virtues. To do.
- the second stator yokes 26b and 26e are also provided with a plurality of pole teeth 30b evenly around the annular plate, and the pole teeth 30b are bent at right angles to the annular plate, for example, a shape such as Gotoku. Construct in a shape.
- the first stator yokes 26a, 26d and the second stator yokes 26b, 26e are arranged separately at both ends of the coil storage portions 29a, 29b provided with the coils 28a, 28b, and have the pole teeth 30a, 30b. Are alternately arranged on the circumference, and the magnetic phase difference at the tips of the pole teeth 30a and 30b is formed at 180 degrees in electrical angle!
- the bearing 27 is made of a material such as a sintered oil-impregnated bearing. Can be reduced.
- the mold case 13 is assembled by joining the front case 13a and the rear case 13b divided into two parts.
- Each case 13a, 13b is formed by cutting the completed case into a shape that corresponds to the approximate center of the rotor magnet 21 and is cut by a plane perpendicular to the length direction of the rotating shaft 22.
- the molded case 13 has a substantially cylindrical portion (40a, 40b (see FIG. 1)) with the outer surface 31 of the pole teeth (30a, 30b (see FIG. 1)) of the stator yoke 26 exposed on the outer surface. 1))) and a front block part 41a and a rear block part 41b provided on one side of the substantially cylindrical part (40a, 40b (see FIG. 1)). Both block portions 41 a and 41 b are provided to reinforce the terminal portions 29 c and 29 d and the mounting plate 14 of the coil bobbin 29.
- the mold case 13 is made of polybutylene terephthalate or liquid crystal polymer.
- a material such as mer is used, and the necessary parts are placed in the mold and injected with grease.
- liquid crystalline polymer is preferable for the viewpoint of fluidity.
- the stepping motor of the present invention is mounted on a move of a digital camera or a video tape recorder, the diameter of the motor is 10 mm or less, preferably 6 mm or less, and the weight is preferably lg or less. 13 is configured based on the following features.
- the mounting plate 14 is firmly fixed by molding by contacting the stator yoke 26 within a substantially outer diameter of the stator yoke 26 by a locking means having a simple structure. As a result, it is possible to omit a structure such as a flange for the mounting bracket that protrudes from the outer diameter of the stator yoke 26, which has been necessary in the past.
- a front block portion 41a is formed by molding resin between the mounting plate 14 and the terminal portion 29c of the coil bobbin 29, and the mounting plate 14 and the terminal portion 29c of the coil bobbin 29 are connected.
- the cover ring 33a of the coil 28a provided on the coil bobbin 29 is performed, and the mounting plate 14 is mounted at the front block portion 41a to reinforce the mounting strength.
- the rear block part 41b and end plate 42 are formed by mold grease, and the end plate 42 and the terminal part 29d of the coil bobbin 29 are connected to the rear block part 41b. More connected. Thereby, the cover ring 33b of the coil 28b provided on the coil bobbin 29b is performed, and the mounting strength of the coil bobbin 29b is reinforced by the rear block portion 41b.
- Mold grease is filled between the pole teeth 30a, 30b of the adjacent first stator yoke 26a and second stator yoke 26b, and first stator yoke 26d and second stator yoke 26e. As a result, vibration due to the electromagnetic force of the coil 28 is efficiently suppressed by the mold grease.
- the mounting plate 14 is made of a metal material or a synthetic resin material filled with metal powder having a good thermal conductivity, and is formed by processing a flat plate, and is provided with a mounting hole 44 and an embedding protrusion 45.
- a rectangular plate portion 46 and an annular plate portion 48 provided with a step portion 51 to be a locked portion 47 for embedded support are configured.
- the mounting hole 44 has an arbitrary shape and is provided for mounting to a counterpart device.
- the embedding protrusion 45 is embedded in the resin during molding, and serves as a retaining and anti-rotation mechanism.
- the annular plate portion 48 of the mounting plate 14 has a circular opening 49 that fits the bearings 27a and 27b in the center, and a peripheral arc-shaped portion 50 (the circular force is also excluded from the rectangular plate portion 46 that is joined thereto).
- the part to be locked is provided with a locked portion 47.
- the locked portion 47 is filled with a resin at the time of molding, and is fixed so that the resin does not come off with the cured locking portion.
- the locked portion 47 is formed in the step portion 51, and the locking portion 55 is formed in a resin molded body having an L-shaped cross section.
- FIG. 4 is a configuration diagram showing a modified example of the mounting plate, the locked portion of the mold case, and the locking portion of the present invention.
- the grease is filled in the locked portion until it becomes the same as the surface of the mounting plate.
- FIGS. 4 (a) to 4 (d) are front views of a part of the annular plate portion and the rectangular plate portion of the mounting plate, and FIGS. (E) to (i) are FIGS. It is a cross-sectional view along line AA, BB, CC, and DD in Fig. 4 (d).
- FIG. 4A is a configuration diagram of a mounting plate that forms an arcuate locked portion 47 on the periphery of the annular plate portion 48.
- the “arc shape” refers to a region obtained by removing the rectangular plate portion 46 from the circumference of the annular plate portion 48.
- the locked portion 47 in Fig. 4 (a) is configured as, for example, a stepped portion 51 in Fig. 4 (e), a tapered surface 52 in Fig. 4 (g), and an inclined surface 53 in Fig. 4 (h).
- the locked portion 47 in FIG. 4 (b) is continuously inward of the outer step portion 51 as shown in FIG. 4 (f), for example.
- a shallow notch 56 is constructed.
- the locked portion 47 in FIG. 4 (c) is formed in a plurality of projections at equal intervals on the plane, and the cross-section is, for example, the step portion 51 in FIG. 4 (e) and the taper in FIG. 4 (g).
- the surface 52 is configured as shown in FIG.
- the locked portion 47 in FIG. 4 (d) is configured by providing through holes 57 at equal intervals in the step portion 51 as shown in FIG. 4 (i), for example.
- the notch 56 and the through hole 57 are also applicable to the examples of FIGS. 4 (e), 4 (g), and 4 (h) as appropriate.
- the height, width, and area of the stepped portion 51 of the locked portion 47 are determined by design.
- the width of the step portion 51 is 0.2 to 0.3 mm, and the height of the step portion 51 is about 0.2 to 0.3 mm.
- the shape of the locked portion 47 may be formed continuously or discontinuously. Further, the step portion 51 etc. may be a multi-stage of two or more steps, and the force for applying the height of the step portion 51 etc. in any order is arbitrary.
- the locked portion 47 should be configured in such a manner that this portion is filled with grease and pressed with the other molded parts so as not to fall off the mounting plate.
- the coil bobbin 29a is mounted on the third stator yoke 26c, and the first stator yoke 26a and the second stator yoke 26b are connected to the third stator. Press fit into the yoke 26c. At this time, the pole teeth 30a of the first stator yoke 26a and the pole teeth 30b of the second stator yoke 26b are positioned so as to have a phase difference of 180 ° in electrical angle.
- bearing 27a is attached to the circular hole 49 of the mounting plate 14 by, for example, press fitting.
- the mounting plate 14 with the bearing 27a mounted in a mold (not shown) is set at a predetermined position, and a pre-combined stator yoke assembly is placed thereon.
- Means such as a mold wall, a core, etc. are provided on the outer surface 31 of the pole teeth and the surface opposite to the pole teeth side of the mounting plate 14 that do not require molding. Keep it. In such a set state, the resin is injected into the mold.
- the stepped portion 51 that becomes the locked portion 47 is embedded with grease, and the embedded plate 14 is embedded.
- the fitting protrusion 45 is embedded with resin, and the back surface of the rectangular plate portion 46 of the mounting plate 14 and the terminal portion 29c connected to the coil housing portion 29a are connected by a wide front block portion 41a made of resin.
- the stepped portion 51 that becomes the locked portion 47 of the mounting plate 14 is locked when the mold case 13 is molded. It can be formed simultaneously by molding. Further, the rectangular plate portion 46 of the mounting plate 14 can be appropriately fixed by the wide front block portion 41a.
- the coil bobbin 29b is attached to the third stator yoke 26f, and the first stator yoke 26d and the second stator yoke 26e are connected to the third stator. Press fit into the yoke 26f. At this time, the pole teeth 30a of the first stator yoke 26d and the pole teeth 30b of the second stator yoke 26e are positioned so as to have a phase difference of 180 ° in electrical angle.
- the bearing 27b is set in a predetermined position in a mold (not shown), and a pre-combined stator yoke assembly is placed thereon.
- the bearing 27b can be fixed to the end plate 42, and the terminal portion 29d of the coil bobbin 29b can be connected and supported to the end plate 42 via the rear block portion 41b.
- pole teeth 30a and 30b of the first stator yoke 26d and the second stator yoke 26e can be fixed so as to suppress vibration by grease.
- the case is formed by separating it into a front case 13a and a rear case 13b. Both cases 13a and 13b are assembled with parts constituting the rotor 11 as shown in FIGS. Assemble by fixing the opening of 13b. If necessary, fill the gap between the openings of both cases 13a and 13b with grease. (cooling)
- a plurality of stator yokes 26 and bearings 27 are provided in contact with a coil bobbin 29 that houses the coil 28, and the outer surfaces 31 of the plurality of pole teeth of the stator yoke 26 are flush with the outer surface 59 of the mold case 13 (the same height). It is exposed in the (side) state.
- Heat generated around the coil 28 and the stator yoke 26 is radiated from the outer surfaces 31 of the pole teeth 30a and 30b of the stator yoke 26 exposed on the outer surface 59 of the mold case 13.
- the generated heat is radiated from the end face of the bearing 27a exposed to the end face in the axial direction of the mold case 13 through the bearing 27.
- the vibration between the pole teeth is suppressed.
- the vibration generated in the pole tooth portion is reduced to some extent by releasing the pole tooth force exposed on the outer surface of the mold case 13 into the air. In this way, in addition to improving cooling performance, vibration and noise can also be suppressed.
- Mold case 13 and mounting plate 14 are filled with grease provided on the periphery of annular plate portion 48 of mounting plate 14! /, Locked portion 47 and mold case 13 Is attached by a locking portion 55 formed by filling the locked portion 47.
- the projection 45 is fixed to the mold case 13 by molding.
- the mounting block 14, the terminal portions 29c and 29d of the coil bobbin 29, and the end plate 42 are held by the front block portion 41a and the rear block portion 41b of the molded mold case 13.
- the mounting plate 14 is provided at one end in the length direction of the mold case 13 so as to guide the bearing 27a. Since they are exposed on the outer surface 59 of the substantially cylindrical portion 40a, they can be placed in different parts of the mold case 13, so that both the mounting function and the cooling function can be effectively performed. .
- FIG. 1 is a perspective sectional view of a stepping motor of the present invention.
- FIG. 2 is a perspective view of the stepping motor of the present invention.
- FIG. 3 is a sectional view of the stepping motor of the present invention.
- FIG. 4 is a configuration diagram showing a modified example of the mounting plate, the locked portion of the mold case, and the locking portion of the present invention.
- FIG. 5 is a view showing a mounting mode using a conventional mounting bracket.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/659,845 US20080084131A1 (en) | 2004-08-12 | 2005-08-09 | Stepping Motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004235084A JP3881353B2 (ja) | 2004-08-12 | 2004-08-12 | ステッピングモータ |
JP2004-235084 | 2004-08-12 |
Publications (1)
Publication Number | Publication Date |
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WO2006033206A1 true WO2006033206A1 (ja) | 2006-03-30 |
Family
ID=36032047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/014572 WO2006033206A1 (ja) | 2004-08-12 | 2005-08-09 | ステッピングモータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080084131A1 (ja) |
JP (1) | JP3881353B2 (ja) |
DE (1) | DE112005000021T5 (ja) |
TW (1) | TW200607212A (ja) |
WO (1) | WO2006033206A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010142055A (ja) * | 2008-12-12 | 2010-06-24 | Yaskawa Electric Corp | 電動機 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008072854A (ja) * | 2006-09-15 | 2008-03-27 | Hitachi Industrial Equipment Systems Co Ltd | 多相クローポール型モータ |
US7911094B2 (en) * | 2007-08-31 | 2011-03-22 | Nidec Sankyo Corporation | Stepping motor |
JP5999806B2 (ja) * | 2012-01-27 | 2016-09-28 | ミネベア株式会社 | ステッピングモータ |
JP6017220B2 (ja) * | 2012-08-09 | 2016-10-26 | ミネベア株式会社 | クローポール型モータ |
KR101677965B1 (ko) * | 2014-08-27 | 2016-11-22 | 주식회사 모아텍 | 스텝 모터 |
US10536052B2 (en) * | 2015-06-16 | 2020-01-14 | Tolomatic, Inc. | Actuator for choke valve |
EP3136553B1 (de) * | 2015-08-26 | 2017-10-11 | Lakeview Innovation Ltd. | Mit kunststoff umspritztes statorsystem mit verbesserter wärmeabfuhr und verfahren zu dessen herstellung |
JPWO2022180708A1 (ja) * | 2021-02-25 | 2022-09-01 |
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JPH0731124A (ja) * | 1993-05-11 | 1995-01-31 | Sony Corp | ステッピングモータの極歯ヨーク及びステッピングモータ |
JP2003186540A (ja) * | 2001-12-14 | 2003-07-04 | Jeco Co Ltd | ロータリーアクチュエータのストッパ構造 |
JP2003284280A (ja) * | 2002-03-26 | 2003-10-03 | Canon Electronics Inc | モータ及びステッピングモータ |
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US3979822A (en) * | 1974-02-23 | 1976-09-14 | Richard Halm | Process of manufacturing an electric motor |
KR100256855B1 (ko) * | 1995-08-02 | 2000-05-15 | 모리시타 요이찌 | 구조재 및 이를 사용하는 성형체 및 이들의 분해처리 방법 |
JP2001061251A (ja) * | 1999-08-23 | 2001-03-06 | Minebea Co Ltd | ディスク駆動装置用スピンドルモータ |
JP3711252B2 (ja) * | 2001-06-13 | 2005-11-02 | ミネベア株式会社 | クローポール型ステッピングモータ |
-
2004
- 2004-08-12 JP JP2004235084A patent/JP3881353B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-09 WO PCT/JP2005/014572 patent/WO2006033206A1/ja active Application Filing
- 2005-08-09 US US11/659,845 patent/US20080084131A1/en not_active Abandoned
- 2005-08-12 TW TW094127442A patent/TW200607212A/zh unknown
- 2005-10-31 DE DE112005000021T patent/DE112005000021T5/de not_active Withdrawn
Patent Citations (3)
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JPH0731124A (ja) * | 1993-05-11 | 1995-01-31 | Sony Corp | ステッピングモータの極歯ヨーク及びステッピングモータ |
JP2003186540A (ja) * | 2001-12-14 | 2003-07-04 | Jeco Co Ltd | ロータリーアクチュエータのストッパ構造 |
JP2003284280A (ja) * | 2002-03-26 | 2003-10-03 | Canon Electronics Inc | モータ及びステッピングモータ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010142055A (ja) * | 2008-12-12 | 2010-06-24 | Yaskawa Electric Corp | 電動機 |
Also Published As
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JP2006054963A (ja) | 2006-02-23 |
US20080084131A1 (en) | 2008-04-10 |
DE112005000021T5 (de) | 2007-10-04 |
TW200607212A (en) | 2006-02-16 |
JP3881353B2 (ja) | 2007-02-14 |
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