CN101453154B - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN101453154B CN101453154B CN200810179686XA CN200810179686A CN101453154B CN 101453154 B CN101453154 B CN 101453154B CN 200810179686X A CN200810179686X A CN 200810179686XA CN 200810179686 A CN200810179686 A CN 200810179686A CN 101453154 B CN101453154 B CN 101453154B
- Authority
- CN
- China
- Prior art keywords
- stator
- magnetic pole
- type magnetic
- motor
- pawl type
- 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.)
- Active
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention provides an electric motor employing stator core (2) with compressed circular formed bodies of magnetic power arranged oppositely, a coil frame (1) of winding coils is provided in the stator core (2), a circumferential positioning projection (1a) for the formed bodies is provided on the coil frame (1). Thereby the circumferential positioning of the stator core is easily performed, the production efficiency is improved and the products are small and thin.
Description
Technical field
The present invention relates to motor.
Background technology
Motor is used for various uses as drive source, and the various products of packing into inner more to be used.For example be used for the compressor of air blast, freezing air conditioner, and be used for so-called subsidiary engine classes such as the power windows of automobile or rain brush etc.Like this, the motor of the product inside of packing into is not only required high efficiency, but also require miniaturization (slimming) or improve assembleability.Therefore, to being used to realize that the rotor that high efficiency, miniaturization, assembleability improve or the shape of stator study.
In patent documentation 1, delivered the formation of the stepper motor that is used for miniaturization and enhances productivity, location, the periphery in the iron core par delivered in patent documentation 2 for the direction of rotation of carrying out iron core have the formation of the V-shaped groove of location usefulness.And, in patent documentation 3, delivered the multiphase claw-pole type motor, by with the compression molding of magnetic powder,, realize the high efficiency of motor though obtain to make simple complex-shaped claw-type pole.
In patent documentation 4 to 6, delivered the formation of using coil rack about the location of iron core.
Patent documentation 1:(Japan) spy opens the 2005-287288 communique
Patent documentation 2:(Japan) spy opens flat 4-17538 communique
Patent documentation 3:(Japan) spy opens the 2006-296188 communique
Patent documentation 4:(Japan) spy opens flat 8-116659 communique
Patent documentation 5:(Japan) spy opens the 2005-304164 communique
Patent documentation 6:(Japan) spy opens flat 10-295070 communique
The location of iron core is made efficient and is realized that the miniaturization and the high efficiency of motor are extremely important for improving.Especially, be provided with in the formation of the iron core with magnetic pole opposite to each other, the dislocation of two iron cores influences the formation in magnetic field, therefore, needs to realize the simplification of location.
Shown in patent documentation 1 to 3, under the situation that location structure is set on the iron core, require to have enough iron core intensity.In patent documentation 1, because use and utilize the iron core of die forming metallic plate, though the location hole that is shaped easily, under the low situation of iron core intensity, cause intensity further to reduce owing to through hole is set, cause after manufacturing process in processing and reliability reduce.
Especially, patent documentation 3 is to use the iron core with the compression molding of magnetic powder, although form magnetic pole easily, iron core itself has only compressed the structure of magnetic powder, is not easy to guarantee full intensity.Therefore, through hole is not set, and adopts concaveconvex shape to position, but cause the complicated of shape.Though can access the pawl type magnetic pole of complicated shape is one of advantage of compression molding, location structure is different with pawl type magnetic pole, and therefore the motor after positioning, wishes simple shape to realizing that high efficiency does not have help aspect intensity.
As mentioned above, especially use the magnetic powder is carried out under the situation of the iron core after the compression molding, the simplification of desired strength, core configuration.One side for example the one side explanation to form method that two of single phase iron cores (two iron cores of following finger, be called " going up lower core ") in opposite directions can position with simple core configuration when positioning and this moment issuable problem.
Fig. 8 is in order to carry out iron core location, be provided with on the composition surface of iron core periphery concavo-convex, by its combination being made the identical example in interval of pawl type magnetic pole.The situation that this example shown is such, promptly when compression molding magnetic powder obtains compressed-core, damaged with the bonding formed body that makes of mould itself when from mould, taking out owing to the resilience of formed body for the concentrated breakage that causes of the stress that prevents mould or with formed body, and make the laterally inclined of this concaveconvex shape.
This compressed-core because be with the iron powder compression molding, push to solidify and form, therefore, except that intensity, the compression aspect when being shaped relatively is difficult to obtain dimensional accuracy.Therefore, concavo-convex short transverse is uneven.
At this moment, in mutual engaging concavo-convex, protuberance is higher than under the situation of recess, can generation gap (with reference to Fig. 8 (b)) on last lower core composition surface.On the contrary, under the protuberance situation lower, produce gap (with reference to Fig. 8 (c)) concavo-convex side than concave depth, therefore, the low precision of the positional precision of last lower core, especially direction of rotation and misplacing.
State shown in Fig. 8 (b), Fig. 8 (c) is the reason that motor characteristic is worsened, and not only causes the performance of motor to reduce, and makes the spread in performance of motor uneven easily, that is, make the motor of batch process produce individual difference.
Summary of the invention
The present invention makes in view of above-mentioned problem, its objective is to provide not only to enhance productivity with high efficiency but also can realize small-sized, slim motor.
To achieve these goals, the application relates to a kind of motor, have the stator core that the formed body that will compress the annular of magnetic powder is provided with in opposite directions, above-mentioned formed body circumferentially has a plurality of pawl type magnetic poles, and the pawl type magnetic pole of a formed body is between the pawl type magnetic pole of another formed body; The application's first invention is characterised in that to have the coil rack of the coil of having reeled in the said stator iron core, has the projection of the circumferential location of carrying out above-mentioned formed body on this coil rack.
And, the application's second invention is characterised in that, the coil rack of the coil of having reeled is set between the above-mentioned formed body in the said stator iron core, this coil rack has projection, and described projection is given prominence to, limited above-mentioned formed body to circumferential misalignment by engaging with above-mentioned formed body towards above-mentioned formed body.
And, the application's the 3rd invention is a kind of motor, has compression magnetic powder and the base portion of providing annular and give prominence to from this base portion and circumferentially to form the formed body of a plurality of pawl type magnetic poles and the stator core of this formed body is set in opposite directions of being shaped, the pawl type magnetic pole of a formed body is between the pawl type magnetic pole of another formed body, it is characterized in that
Between the formed body that is provided with in opposite directions, have the coil rack of coiling coil at the outer circumferential side of above-mentioned pawl type magnetic pole,
Above-mentioned coil rack has on the two sides towards the outstanding a plurality of projections of above-mentioned formed body,
Above-mentioned formed body is in interior all sides of above-mentioned base portion, has a plurality of concavity portion between above-mentioned pawl type magnetic pole,
Above-mentioned projection is positioned at above-mentioned concavity portion.
The better mode of the 3rd invention is, first, distance L 1 between the pawl type magnetic pole on formed body is greater than the width L2 of above-mentioned pawl type magnetic pole, and under the state of above-mentioned formed body of combination and above-mentioned coil rack, the width of above-mentioned concavity portion and the width of above-mentioned projection equate.
Second, above-mentioned projection is in above-mentioned concavity portion, between the leading section of the bottom of above-mentioned concavity portion and above-mentioned pawl type magnetic pole, and the distance L 4 between pawl type magnetic pole and the pawl type magnetic pole adjacent with this pawl type magnetic pole is less than the distance L 5 of the bottom of the leading section of above-mentioned pawl type magnetic pole and above-mentioned concavity portion.
Better concrete mode in above-mentioned each formation is as follows.
(1) above-mentioned projection is differently outstanding mutually in the both sides of above-mentioned coil rack.
(2) have: by the stator of said stator iron core, above-mentioned coil rack and above-mentioned coil combination; Clamp the carriage that said stator ground is installed; And be set at bearing supporting on the above-mentioned carriage, be the center rotor rotated with the rotating shaft.
(3) have: said stator iron core, above-mentioned coil rack and above-mentioned coil stator by the stacked assembling of three phase parts; Clamp the carriage that said stator ground is installed; And be set at bearing supporting on the above-mentioned carriage, be the center rotor rotated with the rotating shaft.
According to the present invention, can provide and not only enhance productivity and realize high efficiency but also realize small-sized slim motor.
Description of drawings
Fig. 1 is the exploded perspective view of the single phase part (Reference numeral 3) of stator.
Fig. 2 is the exploded view of three-phase claw-teeth-type (Claw Teeth) motor.
Fig. 3 is the figure of expression stator section.
Fig. 4 is the stereoscopic figure of three phases stator profile partly of expression stator interior.
Fig. 5 is the figure that single phase in the stator that is formed by three-phase is partly carried out exploded representation.
Fig. 6 is the figure that other examples of lower core location are gone up in expression.
Fig. 7 is the figure of structure of the FFU of expression present embodiment.
Fig. 8 is the figure of expression iron core location example and problem.
Embodiment
Below utilize accompanying drawing to describe with regard to embodiments of the present invention.In this column, just use the formed body that will compress the magnetic powder to be arranged on the iron core of stator opposite to each other, on this formed body that forms by compressed-core, do not form special constituting of positioning concavo-convexly and describe.At first, utilize Fig. 1 and Fig. 2 to describe with regard to the formation of the motor of present embodiment.
Fig. 1 is the exploded perspective view of the single phase part (Reference numeral 3) of the stator that uses of the motor of present embodiment.As shown in Figure 1, last lower core adopts dust core 2 formation in opposite directions that compression magnetic powder is shaped, by such formation stator core.That is, in the present embodiment,, constitute the last lower core of single phase part by the identical dust core of shape 2 is set in opposite directions.
Form a plurality of pawl type magnetic pole 2a on dust core 2, lower core in the combination is so that the pawl type magnetic pole 2a mutually noninterfere of the pawl type magnetic pole 2a of a side dust core 2 and the opposing party's dust core 2.Therefore, in the example shown in the present embodiment, lower core in the butt joint, the inner peripheral surface of 24 pawl type magnetic poles and stator are adjacent to be provided with.
Fig. 2 is the exploded view of three-phase claw-teeth-type motor.Stator 10 forms by the stacked last lower core 2 shown in Figure 1 of three-phase, coil rack 1 and coil, inserts rotor 11 at the center of this stator 10, and this rotor forms by built-up shaft, rotor core and magnet.The both sides of stator 10 are provided with carriage, and in Fig. 2, the both ends of the surface of stator 10 are clamped by load side carriage 12a and load opposition side carriage 12b.Rotor 11 is supported by bearing 13, forms their stepped construction, utilizes to connect screw 14 fixing each formation.
Fig. 3 is the figure of the section of expression stator 10 shown in Figure 2, and Fig. 4 is the stereoscopic figure of three phases stator profile partly of expression stator 10 inside.Fig. 5 is in the stator that is formed by three-phase 10 of Fig. 4, single phase part 3 is carried out the figure of exploded representation, is illustrated in to sandwich between two relative dust cores 2 copper cash is wound on insulation with the coil of making on the coil rack 14.
And, recess is set in the circumferential lateral surface of dust core 2.By make up lower core, this recess becomes peristome, coil is pulled out from this.When three-phase is stacked, also forms this coil and pull out portion, but by they closely are set, available simple formation forms motor at three places.
Shown in Fig. 1 to 5, be arranged on pawl type magnetic pole 2a on the dust core 2 be adjacent to be arranged on the inner peripheral surface of stator 10, promptly with rotor 11 part in opposite directions on, flow at coil 4 by electric current, between adjacent electromagnetism, produce magnetic flux.By like this, rotor 11 produces the effect of revolving forces, performance motor.
Below, describe with regard to the location of the last lower core of present embodiment with the concrete example that constitutes.
[embodiment 1]
As shown in Figure 1, dust core 2 that the formed body by the magnetic powder forms constituting as last lower core in opposite directions used, the pawl type magnetic pole 2a that is arranged on the dust core 2 is adjacent to be provided with.And coil rack 1 has the projection 1a of a plurality of iron cores location usefulness.Projection 1a is towards the dust core 2 of clamping coil rack 1, two side-prominent up and down, and this projection 1a is inserted between the pawl type magnetic pole 2a of dust core 2.In addition, as shown in Figure 1, two side-prominent projection 1a insert in the concavity 2b of portion described later easily give prominence to up and down differently up and down.
Like this, in order to make up lower core, the width L2 of the circumferencial direction of the pawl type magnetic pole 2a of the inner peripheral surface of formation stator 10 is less than the spacing L1 between pawl type magnetic pole 2a.
And the dust core 2 of annular is at the base portion 2 ' of flat shape, have the 2b of concavity portion between pawl type magnetic pole 2a.As shown in the figure, the 2b of this concavity portion is not provided with special concaveconvex shape ground formation such as grooving at the anchor ring of base portion 2 ' between pawl type magnetic pole 2a, form concave shape at the anchor ring of base portion 2 '.
Under the state of lower core in the combination, because the leading section of the pawl type magnetic pole 2a of the opposing party's dust core 2 is positioned at the 2b of concavity portion, therefore, greater than the width L2 of the 2b of concavity portion on the interior perimembranous of dust core 2.And the projection 1a of coil rack 1 inserts the root of the 2b of this concavity portion.Therefore, under the state that has made up dust core 2 and coil rack 1, the width L3 of the circumferencial direction of the 2b of concavity portion is identical with the width L3 of projection 1a on being arranged on coil rack 1.
By having above-mentioned formation, the projection 1a of coil rack 1 inserts the 2b of concavity portion of dust core 2, the location of last lower core, and dust core 2 can not be shifted in direction of rotation.And because projection 1a is not inside all sides but side-prominent to each dust core 2, therefore, the not influence of setting at the adjacent pawl type magnetic pole 2a of rotor 11 sides can be controlled at needed value with the distance L 4 between adjacent pawl type magnetic pole 2a.
And, be accommodated in the 2b of concavity portion by leading section pawl type magnetic pole 2a, can be not pawl type magnetic pole 2a be arranged in and rotor 11 interior perimembranous in opposite directions with the base portion 2 ' of in opposite directions dust core with interfering.That is, form the formation of anchor ring that the leading section make pawl type magnetic pole 2a may extend into the base portion 2 ' of dust core 2 in opposite directions, can form effective magnetic circuit.
And, mutually in opposite directions on the lower core, though between adjacent pawl type magnetic pole 2a, form magnetic circuit, but because when making the leading section of pawl type magnetic pole 2a and the distance L between the base portion 2 ' 5 greater than the distance L between adjacent pawl type magnetic pole 2a 4, the projection 1a of the coil rack 1 of insulating material formation is positioned between the leading section and base portion 2 ' of pawl type magnetic pole 2a, therefore, can suppress leakage of magnetic flux, form high efficiency formation.That is, because the influence of the magnetic flux that the distance L 4 between adjacent pawl type magnetic pole forms less than the distance L 5 of the bottom (base portion 2 ') of the leading section of pawl type magnetic pole 2a and the 2b of concavity portion, therefore can reduce energising the time.Simultaneously, because diametric width L6 and the L5 of projection 1a are roughly the same, therefore, help to reduce flux leakage.
As mentioned above, use under the situation of coil rack, by the two sides at coil rack 1 the projection 1a that cooperates with iron core 2 is set, built-up coil skeleton 1 and iron core 2 when assembling iron core 2 forms stator core, can be positioned at both the angle that needs.And, can suppress leakage of magnetic flux, realize high efficiency by the position relation of the 2b of concavity portion, projection 1a and pawl type magnetic pole 2a.
Fig. 6 is the figure that expression carry out different with embodiment 1 goes up the example that lower core locatees.As mentioned above, the dust core 2 of present embodiment is formed by the formed body that has compressed the magnetic powder, and embodiment 2 also is identical in this.Below, identical with 1 embodiment except the formation shown in special, so detailed.
The feature of embodiment 2 is that mould is used in the location of going up lower core.Specific as follows.In the present embodiment, use will have been compressed the iron core 2 that the formed body of magnetic powder is provided with in opposite directions, utilize resin that this dust core 2 is carried out using behind the molding.When formed body is carried out molding, use mould in order to be held in body.
Fig. 6 is the figure that represents the example of the mould that uses in a second embodiment.This molding die 5 has the maintaining part of formed body, is arranged on this maintaining part by the formed body of molding.In the present embodiment, owing to dust core 2 being provided with in opposite directions, constituting stator core, therefore, also mould is formed the complete use of upper die and lower die.In addition, in the following description, Fig. 6 represents counterdie.That is, the left figure of Fig. 6 is the vertical view of counterdie, and right figure is the cutaway view of center line.
If use such mould, when being provided with, utilizing resin to carry out molding in opposite directions dust core 2,, then can locate last lower core behind the molding, fix if on mould up and down, carry out circumferential location respectively.Therefore, do not use coil rack just can carry out the circumferential location of dust core 2.
As shown in Figure 6, the mould 5 of present embodiment has the maintaining part of formed body on molding die up and down, has the projection 5a that pawl type magnetic pole 2a or the 2b of concavity portion with dust core 2 carry out precision-fit in this maintaining part.By like this, limit dust core 2 and on mould 5, carry out circumferentially moving, thereby position.On the other hand, the dust core that is provided with in opposite directions with this dust core 2 does not position by there being illustrated patrix too.
Therefore, keep this state simultaneously to carry out the moulding resin moulding, can under the state of location, obtain stator core by mould, one side about the combination.Therefore, pawl type magnetic pole 2a can be set equally spacedly.And, in the manufacturing process of back, can improve the processing of stator 3.
Fig. 7 is the figure that an example of the motor shown in the above embodiments 1 or the embodiment 2 is used in expression, and this example is represented FFU.Fan 21 is installed on the rotating shaft of motor 20, in filter 23 is accommodated in framework 22, constitutes blower fan filtering unit (FFU).Framework 22 has peristome up, by the rotation of fan 21, sucks air from peristome.That is, by the rotation of fan 21, the top from figure sucks air, by being installed in the filter 23 of fan 21 belows.
Therefore, air is filtered by filter 23 time, discharges to the downstream (bottom among the figure) of filter 23 as the air of cleaning.FFU is on-stream constantly to supply with the air removed dust etc. in clean room, indoor cleaning keeps clean.
Therefore the FFU of present embodiment is strict with slimming owing to be installed in the top plate portion of clean room.Because filter 23, motor 20 and fan 21 are installed on the framework 22, therefore by realizing the miniaturization of motor 20, FFU also can realize miniaturization.
Claims (12)
1. motor, has the stator core that is provided with formed body in opposite directions, described formed body is shaped by compression magnetic powder and has the base portion of annular and outstanding and circumferentially forming a plurality of pawl type magnetic poles from this base portion, the pawl type magnetic pole of a formed body is between the pawl type magnetic pole of another formed body, it is characterized in that
Between the formed body that is provided with in opposite directions and at the outer circumferential side of described pawl type magnetic pole, have the coil rack of coiling coil,
Described coil rack has on the two sides towards the outstanding a plurality of projections of described formed body,
Described formed body is in interior all sides of described base portion and have a plurality of concavity portion between described pawl type magnetic pole,
Described projection is positioned at described concavity portion.
2. motor as claimed in claim 1, it is characterized in that, distance (L1) between the pawl type magnetic pole on formed body is greater than the width (L2) of described pawl type magnetic pole, and under the state of described formed body of combination and described coil rack, the width of described concavity portion and the width of described projection equate.
3. motor as claimed in claim 1 is characterized in that, described projection in described concavity portion between the leading section of the bottom of described concavity portion and described pawl type magnetic pole,
Distance (L4) between pawl type magnetic pole and the pawl type magnetic pole adjacent with this pawl type magnetic pole is less than the distance (L5) of the bottom of the leading section of described pawl type magnetic pole and described concavity portion.
4. motor as claimed in claim 1 is characterized in that, described projection is differently outstanding mutually in the both sides of described coil rack.
5. motor as claimed in claim 2 is characterized in that, described projection is differently outstanding mutually in the both sides of described coil rack.
6. motor as claimed in claim 3 is characterized in that, described projection is differently outstanding mutually in the both sides of described coil rack.
7. motor as claimed in claim 1 is characterized in that having: by the stator of described stator core, described coil rack and described coil combination; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
8. motor as claimed in claim 2 is characterized in that having: by the stator of described stator core, described coil rack and described coil combination; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
9. motor as claimed in claim 3 is characterized in that having: by the stator of described stator core, described coil rack and described coil combination; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
10. motor as claimed in claim 1 is characterized in that having: with described stator core, described coil rack and the described coil stator by the stacked assembling of three phase parts; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
11. motor as claimed in claim 2 is characterized in that, has: with described stator core, described coil rack and described coil stator by the stacked assembling of three phase parts; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
12. motor as claimed in claim 3 is characterized in that, has: with described stator core, described coil rack and described coil stator by the stacked assembling of three phase parts; The carriage of installing in the mode of clamping described stator; And be the center rotor rotated with the rotating shaft by being arranged on the bearing supporting on the described carriage.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-316521 | 2007-12-07 | ||
| JP2007316521 | 2007-12-07 | ||
| JP2007316521A JP5134935B2 (en) | 2007-12-07 | 2007-12-07 | Electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101453154A CN101453154A (en) | 2009-06-10 |
| CN101453154B true CN101453154B (en) | 2011-09-07 |
Family
ID=40735225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810179686XA Active CN101453154B (en) | 2007-12-07 | 2008-12-05 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5134935B2 (en) |
| CN (1) | CN101453154B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5167330B2 (en) | 2010-12-01 | 2013-03-21 | 株式会社神戸製鋼所 | DC brushless motor and control method thereof |
| CN108808926A (en) * | 2018-06-01 | 2018-11-13 | 重庆凯邦电机有限公司 | Stator skeleton, motor stator component, motor |
| CN114287103B (en) * | 2019-10-17 | 2023-11-03 | 住友电气工业株式会社 | Rotary electric machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259790A (en) * | 1999-01-06 | 2000-07-12 | 精工爱普生株式会社 | Stepping motor |
| CN101047330A (en) * | 2006-03-31 | 2007-10-03 | 厦门达真磁记录有限公司 | Stator structure of permanent magnetic claw step electric machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS614459A (en) * | 1984-06-18 | 1986-01-10 | Matsushita Electric Ind Co Ltd | Step motor |
| JP4878183B2 (en) * | 2005-03-18 | 2012-02-15 | 株式会社日立産機システム | Multiphase claw pole type motor |
-
2007
- 2007-12-07 JP JP2007316521A patent/JP5134935B2/en not_active Expired - Fee Related
-
2008
- 2008-12-05 CN CN200810179686XA patent/CN101453154B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259790A (en) * | 1999-01-06 | 2000-07-12 | 精工爱普生株式会社 | Stepping motor |
| CN101047330A (en) * | 2006-03-31 | 2007-10-03 | 厦门达真磁记录有限公司 | Stator structure of permanent magnetic claw step electric machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-56141A 1997.02.25 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101453154A (en) | 2009-06-10 |
| JP5134935B2 (en) | 2013-01-30 |
| JP2009142086A (en) | 2009-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3125405B1 (en) | Permanent magnet assembly and motor | |
| US6727624B2 (en) | Embedded permanent magnet type induction motor which allows coil embedding work to be easily performed | |
| US20140009022A1 (en) | Amorphous divided-core stator and axial-gap-type motor using same | |
| US6906443B2 (en) | Brushless DC motor with stepped skewed rotor | |
| KR20100134673A (en) | Integrated rotor pole pieces | |
| EP1453188A3 (en) | Electrical motor stator assembly and fabrication method thereof | |
| JP2008245488A (en) | Ring-like magnet, manufacturing method therefor, and motor | |
| JP2021507656A (en) | Motor or electromagnetic generator stator with separate winding supports that snap-engage to the associated teeth | |
| CN101453154B (en) | Motor | |
| CN104426315A (en) | Three-phase electromagnetic motor | |
| CN101635478B (en) | Electric motor | |
| JP2008167615A (en) | Single-phase claw pole permanent magnet motor | |
| US20140035419A1 (en) | Rotor, rotating electrical machine, and manufacturing method of the rotor | |
| US20060071576A1 (en) | Flat board type brushless dc motor | |
| JPH0458747A (en) | Manufacture of coreless armature coil, and brushless coreless motor wherein that coil is used | |
| US20140054999A1 (en) | Method of manufacturing an electric machine with segmented permanent magnets | |
| US7626302B2 (en) | Stator component for an electric motor | |
| JPH09117118A (en) | Manufacture of induction motor and stator | |
| JP3657155B2 (en) | 2-axis synchronous motor | |
| CN114207992B (en) | Iron core sheet, stator iron core, stator and rotating electrical machine | |
| KR20120025827A (en) | Method for manufacturing a separated stator and stator thereof | |
| JP4543415B2 (en) | Core structure of smooth armature winding AC servo motor and smooth armature winding AC servo motor using this core structure | |
| JP2000316240A (en) | Stator for spindle motor and manufacture thereof | |
| JP2003102135A (en) | Gap-winding motor | |
| JP2004201488A (en) | Synchronous motor and its manufacturing method |
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 |