CN1521919A - Rotary electrical apparatus - Google Patents
Rotary electrical apparatus Download PDFInfo
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- CN1521919A CN1521919A CNA2004100027513A CN200410002751A CN1521919A CN 1521919 A CN1521919 A CN 1521919A CN A2004100027513 A CNA2004100027513 A CN A2004100027513A CN 200410002751 A CN200410002751 A CN 200410002751A CN 1521919 A CN1521919 A CN 1521919A
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A plurality of embodiments of rotating electrical machines having improved arrangements for securing plate type permanent magnets to a cylindrical surface of one component of the machine in facing relation to another relatively rotatable component thereof with a small gap therebetween. The magnets are secured by embedding them in a bonding material surrounding the peripheral edges of the magnets and at least a portion of the sides thereof facing the gap and leaving an area of said sides directly exposed to the gap to maintain good electrical properties and machine performance without necessitating an increase in the gap.
Description
Technical field
The present invention relates to a kind of rotary electrical apparatus, but relate in particular to a kind of when keeping the good electrical performance the improved structure of firm fixation permanent magnet.
Background technology
Rotary electrical apparatus can comprise motor or generator, general these rotary electrical apparatus are made of the assembly in relative rotation of cooperation, these assemblies comprise the permanent magnet of a plurality of circumferentially spaceds, and these permanent magnets are cooperated with the tip of a plurality of magnetic pole tooths that center on its winding cables coil.If device is motor, coil is energized in succession to realize rotation.If device is generator, it is driven and produces voltage in coil windings.The equipment of these types can adopt various ways.
The rotary electrical apparatus of this traditional magnetic field type can adopt inner permanent magnetic body (IPM) structure, and in this structure, the permanent magnet embedment that is used to form magnetic field is in stator yoke iron of being made by magnetic material (iron core) or rotor yoke iron; Perhaps, also can adopt surperficial permanent magnet (SPM) structure, in this structure, all permanent magnets are with on the required surface that is disposed on iron core.
Day disclosure application 2002-27690 shows a kind of type of IPM structure.In this structure, for benefiting magnetic flux distribution, semi-cylindrical shaped projection is set on the external margin of the iron core on the diameter line at center of the center line that connects permanent magnet and rotor core.
There are some defectives in these IPM structures, and its reason is that the part of the magnetic flux in the formation magnetic field that permanent magnet is launched is shunted, and magnetic flux can flow through core interior by the gap that produces between iron core outward flange and the permanent magnet.Magnetic flux can not arrive rotor core or stator core also can cause flux leakage, therefore, efficient is reduced, that is to say, and be the minimizing that motor then can cause the torque output variable as this equipment, be the decline that generator then can cause electromotive force as this equipment.
For the SPM structure, the permanent magnet that is used to form magnetic field is embedded on the surface of rotor core, and directly faces the magnetic pole of the coiling of stator.Therefore, permanent magnet can be provided with to such an extent that off-line circle magnetic pole is near as far as possible.The magnetic flux flow of permanent magnet will act on the winding by a minimum gap.This makes the waveform of electromotive force near sinusoidal waveform roughly.This can reduce torque pulsation.Therefore, present majority trends towards using the structure of SPM type.
Day disclosure application 2000-166141A discloses a kind of structure of SPM type.In this structure, permanent magnet is carried on the rotor, and is bonded to predetermined space and is formed in the lip-deep groove of exterior circumferential of cylindrical rotor.Permanent magnet has a kind of semicylindrical shape, and this shape has a curved surface in the face of the utmost point tooth of the coiling of stator.Permanent magnet surfaces is different with gap length between the stator on the opposite side of recess, thereby reduces torque ripple by the induced potential that generation has higher harmonics content.
Yet, handling be connected the still existing problems of magnet with the SPM type structure.Shown in Fig. 1 and 2,3 and 4, these problems are preferably by understanding with reference to the example of these prior art constructions that adopt usually.
At first with reference to the example of the prior art of Fig. 1 and 2, these accompanying drawings show a kind of rotor structure of motor with permanent magnet of SPM type structure, and wherein, the rotor that is carrying magnet is positioned at the stator inboard.As shown in the figure, comprise a plurality of permanent magnet pieces 12, in the corresponding groove 13 that these permanent magnet pieces 12 form with adhesive bond in the cylindrical external surface 14 of rotor core 15 generally by the rotor of label 11 expression.The outer magnetic pole surface 12a of each permanent magnet pieces 12 surrounds into a drum, thereby in the face of the stator (not shown) around rotor 11.
Rotor 11 is by being positioned at two bearings 16 and 17 journal rests along the axially-spaced position of armature spindle 18, thereby makes it center on axis rotation.A kind of typical traditional magnet-holding structure of these rotor 11 representatives, in this structure, the whole outside cylindrical shape surface of the rotor 11 by comprising all permanent magnet pieces 12 with moulded resin 19, the fixing permanent magnet pieces 12 that can keep boning can not break away from rotor core 15 under the influence of centrifugal force.
Entirely be molded resin 19 at this structure rotor 11 and wrap, the shortcoming of this structure is, rotor, the particularly gap between magnet surface 12a and the stator can reduce owing to the thickness of moulded resin layer 19.Therefore, for avoiding mechanical disturbance, must will make the gap increase the thickness of resin 19 at least.Like this, the magnetic interaction between rotor and the stator is with weakened, and this can cause exporting reducing of torque under the situation of motor, perhaps can reduce electric output under the situation of generator.
Referring now to the prior art constructions shown in Fig. 3, wherein show traditional DC motor of another kind of inner rotor core.In this example, always the rotor by label 21 expressions is made of a laminated rotor iron core, and this rotor core has a plurality of pole parts 22, and a plurality of coil windings (not shown) are provided with around these pole parts 22.These windings extend in the groove 23 that forms between the utmost point tooth 22.Utmost point tooth has the extreme outer surfaces 24 of arc.Rotor 21 axle journals are connected on the motor reel (not shown), the axis hole 25 that the center of this motor reel by the iron core of rotor 21 gets out.
Be arranged on the outside of rotor 21 generally by the stator of label 26 expression, form an annular gap 27 between stator and the rotor.A plurality of permanent magnets 28 are with in the annular gap 27 on the inside cylindrical shape inner surface 29 that circumferentially is disposed on stator 26 that equates.These magnets 28 are curve shape, thereby consistent with the inside cylindrical shape surface 29 of stator 26, and relative with the arc outermost surfaces 24 of rotor 21 corresponding pole parts 22.Form some little intervals between them.
Fig. 4 shows another kind of and the similar prior art constructions of Fig. 3, and this example for example comprises the generator of the traditional outer-rotor structure of common use in motorcycle.This traditional generator comprises a stator (generally by 31 expressions), and this stator radially is positioned at rotor (generally by 32 expressions) inboard.As the structure of Fig. 3, coil (not shown) is round the magnetic pole of stator 31.When driving these coils, can produce electric current output.
Rotor 32 is provided with the permanent magnet 33 of four arcs, these permanent magnets 33 with the circumferential fixed interval that equates on the inside cylindrical shape surface 34 of rotor 32.
In the permanent magnet 33 of four arcs each is geomagnetic into the magnetic pole of three alter polarities and works, like three permanent magnets are set together mutually in intimate contact.
When external force made rotor 32 rotations, the generator of this outer-rotor structure can produce alternating current output from the coil of stator 31, and is used as the power supply that motorcycle is lighted car light and so on.Yet, the generator of this traditional outer-rotor structure only adopts with binding agent and arc-shaped permanent magnet 33 is fixed to method on the inside cylindrical shape surface 34 of rotor 32, and does not relate to the technological concept of using moulded resin medium cast parcel and molded fixed permanent magnet 33.Therefore, these prior art structures can increase the danger that permanent magnet in operation comes off.
Therefore, a main purpose of the present invention provides a kind of rotary electric machine, and its efficient is high, but possesses the structure of fixed permanent magnet very securely again simultaneously, thereby can eliminate the danger that permanent magnet comes off substantially.
Summary of the invention
The present invention is suitable for realizing a kind of like this rotary electric machine, this rotary electric machine comprises: an assembly, this assembly has a cylinderical surface that is suitable in the face of a gap, wherein is at interval to form by the cooperation cylinderical surface that the magnetic pole of being reeled by wire coil forms.A plurality of template permanent magnets separate around cylinderical surface.One adhesive surrounds the periphery edge of magnet and in the face of at least a portion of the side of the permanent magnet in gap, during a zone that keeps described side simultaneously is exposed at interval.Adhesive attachment is on cylinderical surface.
Description of drawings
Fig. 1 is the end view of rotor of the rotary electric machine of first kind of prior art type, and wherein a part is analysed and observe.
Fig. 2 is for to cut open the cutaway view of getting along the line 2-2 among Fig. 1.
Fig. 3 cuts open the cutaway view of getting for the rotation perpendicular to the rotary electric machine of second kind of prior art type.
Fig. 4 cuts open the cutaway view of getting for the rotation perpendicular to the rotary electric machine of the third prior art type.
Fig. 5 for part and Fig. 1 similarly, the end view analysed and observe of band portion, but be the rotor of the rotary electric machine of first embodiment of the invention shown in this end view.
The cutaway view that Fig. 6 analyses and observe for the line 6-6 along Fig. 5.
Fig. 7 is the curve chart of electrical degree with respect to the electromotive force of the motor of Fig. 5 and Fig. 6.
Fig. 8 is the partial sectional view along the amplification of the axial plane intercepting of the rotary electric machine of the second embodiment of the present invention.
Fig. 9 is the cutaway view of analysing and observe along the axial plane of the rotary electric machine of the third embodiment of the present invention.
Figure 10 for part and Fig. 9 similarly, the cutaway view analysed and observe along the axial plane of the rotary electric machine of third embodiment of the invention.
Embodiment
Below specifically with reference to accompanying drawing, at first with reference to the embodiment of Fig. 5 and Fig. 6, there is shown the part that rotor is positioned at the inner-rotor type rotary electric machine of stator, although those of ordinary skill in the art will be from the apparent the present invention of following description, the present invention is not limited only to this.
The rotary electrical apparatus of present embodiment comprises a rotor, and this rotor is generally by label 51 expressions.Rotor 51 comprises a rotor core 52 of being made by magnetic material.Rotor core has a splined hole 52a who it is connected to non-rotatingly the spline 53 of an armature spindle 54.
The annular sensing magnet 57 of all magnetic poles of a circumferentially spaced with alter polarity is connected on the side of rotor core 52 towards fore bearing 55 ground.By be loaded in associated stator (not shown) on the magnetic sensor elements such as Hall effect element (not shown) cooperate, sensing magnet 57 can be measured the anglec of rotation of rotor 51.
The modes such as bonding of a plurality of template permanent magnets 58 by binding agent with impartial or unequal fixed interval in the groove that in the outside cylindrical shape surface 59 of the rotor core 52 of rotor 51, forms.These permanent magnets 58 preferably can fix by thermosetting moulded resin 61 with a mode (following will briefly the description) by the molded appropriate location that fixedly remains on.
When as described above with permanent magnet 58 bonding and navigate on the rotor core 52 after, permanent magnet 58 is placed in the moulds (not shown).The inner surface of mould is a cylindrical shape, as being positioned on the rotor core 52, the circumferential end 58a and the 58b of this cylindrical shape and magnet 58 are tangent.Then, be used for local cover and the fixing moulded resin 61 that keeps permanent magnet 58 is poured in the mould and it is fixed.
With above-mentioned configuration, can gap of formation between the inner surface of the mid portion of the smooth pole surface 58N of corresponding permanent magnet 58 or 58S and mould.Therefore, resin mould 61 can inject this gap and be centered around magnet 58 and two end regions of the rotor core 52 that permanent magnet 58 is not bonded between around outside cylindrical shape surface 59, thereby finish permanent magnet 58 and iron core 52 are molded as a unit.
Referring now to Fig. 6, can see that the circumferential width end 58a of each magnetic pole 58 and 58b are not molded resin 61 coverings, but expose.Only the central area of each smooth pole surface 58N or 58S is molded resin 61 coverings.
Like this, because the cover layer of moulded resin 61, therefore, even do not take measures to increase the amount in the gap of the magnetic interaction between the inside cylindrical shape surface that is used for rotor 51 and stator, rotor 51 can not have machinery yet and is supported by stator intrusively.It is also important that because the only local magnet 58 that covers of moulded resin 61, therefore, electrical efficiency only has small reduction.Because when increasing the intensity that keeps permanent magnet 58, time output torque or the output variable that produced during as generator all do not have obvious minimizing as motor with rotary electrical apparatus, therefore, this is the advantage as the rotary electrical apparatus aspect of performance of motor or generator.
Fig. 7 is the figure that shows the back electromotive force that the rotor 51 of the motor that constitutes according to the embodiment of Fig. 5 and Fig. 6 by rotation records.Back electromotive force shows as a very level and smooth sine curve.This has confirmed that along with slot effect or torque pulsation reduce significantly the characteristic that output is reversed will be stably.
Though, above embodiment describes around the example that rotor 51 is positioned at the SPM type rotary electrical apparatus of a such inner rotator structure of stator, and still know-why of the present invention also can apply on the SPM type equipment that rotor is arranged on the outer-rotor structure outside the stator.Fig. 8 shows a kind of like this embodiment, and is described in detail hereinafter with reference to accompanying drawing.
Fig. 8 is the partial sectional view of structure of a kind of embodiment of external rotor SPM type rotary electrical apparatus.Rotor generally by 71 expressions forms an annular construction member.Flat tabular permanent magnet 73 is basic identical with the permanent magnet 12 of the foregoing description, these magnets 73 along circumferential position with on the equal drum type inner surface that is disposed on annular flywheel member 71 72.
Magnet 73 has its inner radial surface 74 towards stator (generally by label 75 expressions).Stator 75 is by constituting the stator core of a large amount of magnetic materials is stacked, thus the utmost point tooth 76 that forms evenly at interval, radially extends.Each utmost point tooth 76 is centered on by a respective coil 77.The coil 77 of reeling extends by the groove 78 that forms between utmost point tooth 76.The tip of the surperficial 73b of rotor 71 and particularly permanent magnet 73 and the utmost point tooth 76 of stator 75 separates a gap 79.
Each permanent magnet 73 has outside and interior portion flattening pole surface 73a and the 73b that radially separates respectively.Each outer magnetic pole surface 73a is fixed in the corresponding shallow channel 81 that forms in the inside cylindrical shape surface 72 of flywheel member 71 by means suitable such as adhesive.
The radially internal magnetic pole surface 73b of each permanent magnet 73 is covered by moulded resin 82.Resin 82 is columnar, and its inner circumference area and surperficial 73b are tangent.Therefore, different with the foregoing description is, the zone line between circumferential ends 81c and the 81d exposes, and these ends 81c and 81d are capped.
By moulded resin 82 being injected, form the cladding of moulded resin 82 along being centered in stator 75 in the heart and extend the molding die that the shell cylinder of two width end 81a covering each permanent magnet 73 and 81b forms.The shell cylinder is formed the tangent cylinder of inside center zone with each permanent magnet 73.Therefore, when moulded resin 82 covered magnetic part 73, the central area was exposed to outside the moulded resin, thereby directly in the face of stator 75.
Same as the previously described embodiments is, because resin coating cap rock 82 only covers the part (this end in the present embodiment is relative with core among Fig. 5 and 6 embodiment) of the surperficial 73b of each permanent magnet 73, therefore, need not to increase the gap of relative stator 75, can avoid the mechanical disturbance between the rotor 71 and stator 75 when rotor 71 rotation.Like this, can firm fixation be used to produce each permanent magnet 73 in the magnetic field that is used for rotor 71, and can not influence magnetic property as the relevant rotary electrical apparatus of motor or engine.
In each embodiment that has described, permanent magnet has identical circumferential width and interval.Yet the present invention is not limited only to this, and this description from following Fig. 9 embodiment is conspicuous.
Fig. 9 shows a kind of rotary electrical apparatus of another embodiment of the present invention, and this rotary electrical apparatus is the such inner-rotor type DC motor of DC motor that constitutes traditional inner rotor core as shown in Figure 3.The DC motor of present embodiment comprises a rotor (generally by 91 expressions) and a stator (generally by 92 expressions).
Rotor 91 is to be made by the stacked magnetic steel plate with an iron core part 93, and utmost point tooth 94 radially extends from iron core part 93.Coil windings (not shown) centers on utmost point tooth 94 and extends in the groove 95 that forms between magnetic pole tooth 94.Rotor 91 is by armature spindle (not shown) supporting rotation.And armature spindle is fixed in the centre bore 96 of iron core part 93 un-rotatably.
Stator 92 comprises a toroidal shell 97.In the present embodiment, a plurality of flat permanent magnet 98 triplets settings and being fixed on the inside cylindrical shape surface 99 of toroidal shell 97.These magnet groups 98 are arranged in the position of circumferentially spaced with specific quantity (being four in the accompanying drawings).
Permanent magnet 98 all is magnetized to the magnetic pole that radially separates with relative circumferentially spaced polarity.Preferably, three magnets 98 of each group all are configured to identical magnetic pole sequence.As shown in the figure, two relative smooth tabular permanent magnets 98 of diametric(al) are set in the phase place of the circumferencial direction identical with the magnetic pole tooth 94 of rotor 91.The permanent magnet 98 of other that is in that the two-phase ortho position puts along the circumferential direction is shifted at the magnetic pole tooths 94 of rotor 91 relatively, like this, when coil (not shown) when being energized, between the magnetic pole tooth 94 of the permanent magnet 98 of stator 92 and rotor 91, can produce and attract and repulsive force, so that rotor 91 rotations.
Aforesaid, formerly among the embodiment, permanent magnet 98 is being adhesively secured on the stator surface 99 by binding agent at first.Here, the smooth tabular permanent magnet 98 of three in each of four positions has the radially outer flat surfaces of firm fixation on the inside cylindrical shape surface 99 of the housing 97 of stator 92.Then, the moulded resin of the thermosetting characteristic such as unsaturated polyester (UP) press mode that preamble describes with the tangent cylindrical shape figure deposition of magnetic pole strength 98a towards the magnetic pole tooth 94 of rotor 91.As the embodiment of Fig. 8, this makes that only the width central area of smooth pole surface 98a is exposed.Yet along with the curing of moulded resin 101, the circumferential ends zone on the both sides, central area is capped.
The said structure that moulded resin 101 does not cover the central area of pole surface 98a can be eliminated the existence of the moulded resin layer in the gap that tabular permanent magnet 98 passed through in the face of the magnetic pole tooth 94 of rotor 91.Therefore, the gap value between rotor 91 and the stator 92 can keep as far as possible for a short time, and the output variable that can prevent motor is owing to gap value reduces.
Three permanent magnets 98 constitute one group, and moulded resin 101 is also inserted in the space between the tabular permanent magnet 98 of two adjacent set (current diagram circumferencial direction is four).Therefore, along the circumferential direction extend and solidify by the moulded resin part 101a shown in the hatching line.Moulded resin 101 is also inserted the short space that along the circumferential direction exists between every group of tabular permanent magnet 98 of adjacent flat and is solidified.This makes it possible to fixed permanent magnet 98 securely with moulded resin part 101a, and can prevent reliably that when electric motor operated tabular permanent magnet 98 from separating and come off.
Figure 10 is the cutaway view of another embodiment of the present invention, this is and the example of the outer rotor type generator similar structures that the front is described with reference to Fig. 8, and it can prevent because the increase of the gap value between rotor and the stator reduces the output variable of generation when being formed at by the fixing tabular permanent magnet of the present invention of moulded resin.
Referring to Figure 10, the rotor generally by 121 expressions comprises an annular flywheel 122.The above a plurality of tabular permanent magnet 123 of making is arranged in a plurality of positions in the groove that forms on the inside cylindrical shape surface of flywheel 122 124, forms the magnetic pole tooth 125 of the planar surface 123 of magnetic pole towards the internal stator 126 of same quantity on a radial side of permanent magnet 123.Aforesaid, the relative magnetic pole 123b of magnet 123 is adhesively fixed in groove 124.
As above-mentioned all embodiment, a plurality of electric coils are round utmost point tooth 125.In this case, because the quantity of tabular permanent magnet 123 equates with the quantity of magnetic pole tooth 125 on being arranged on stator 126, when tabular permanent magnet 123 rotates, when rotor 121 turned over 360 degree divided by utmost point tooth 125 and magnet 123 quantity gained angles, magnet 123 will be in the face of the next magnetic pole tooth 125 of stator 126.
As above-mentioned embodiment, tabular permanent magnet 123 is magnetized to, and the polarity of N and S alternately changes from a magnet to another magnet with circumferencial direction.In other words, be magnetized to the N utmost point as the relative generator of radial surface center towards a permanent magnet 123 of magnetic pole of the stator part 125, a then relative surface is magnetized to the S utmost point, then to be magnetized to towards the radial surface ground of the pole parts 125 of stator be the S utmost point to the next permanent magnet 123 of circumferencial direction, and the apparent surface is the N utmost point.This set makes, when rotor 121 during in stator 126 inner rotary, the coil of reeling around the magnetic pole tooth 125 of stator can produce electric current.
Along with the curing of the thermosetting moulded resin 127 such as unsaturated polyester (UP), tabular permanent magnet 123 is fixed on the inside cylindrical shape surface 52 of flywheel 122 of rotor 121 securely.Resin 127 covers two width end regions of planar surface 123a, and has covered the gap between the adjacent permanent magnet 123, and the central area of planar surface 123 is not capped.With this set, as the embodiment that describes with reference to Fig. 9 before, moulded resin 127 does not have the central area of coverage rate to the planar surface 123 of the permanent magnet 123 of the pole parts 125 of stator 126, and only its two side areas is molded resin 127 coverings.Therefore, needn't increase the amount in gap between rotor 121 and the stator 126 according to the layer of the moulded resin 127 that forms.Like this, can firm fixation permanent magnet 123 and can not reduce the output variable of generator, and the danger that can avoid the rotary manipulation owing to rotor 121 to make tabular permanent magnet 123 separate and come off reliably.
Therefore, can it is evident that described embodiment is uncovered by a sizable part that keeps smooth pole surface with moulded resin covering permanent magnet, permanent magnet can be fixed on rotor or the stator securely from foregoing description.Simultaneously, also make between rotor and stator, to keep a little gap, and not can thus the tectal thickness of moulded resin and increase the gap.Like this, when the present invention applies to rotary electrical apparatus, no matter be as motor or generator, all can be fixed for producing the permanent magnet pieces in magnetic field securely, and not sacrifice the electromotive force of output torque or generation.Like this, can improve the reliability of rotary electric apparatus function and increase the service life, and rotor and stator are faced mutually by a very little gap, fully prevent that permanent magnet pieces from separating simultaneously.Certainly, those of ordinary skill in the art can it is evident that, more than describes only to be preferred embodiment, under the prerequisite that does not break away from the aim of the present invention that limits as appended claims and scope, can also make various changes and modification.
Claims (8)
1. electric rotating machine, described electric rotating machine has: an assembly, this assembly have a cylinderical surface, and this surface is suitable for the gap that the cylinderical surface in the face of a cooperation that is formed around magnetic pole by wire coil forms; A plurality of templates, smooth all permanent magnets, described permanent magnet separates around described cylinderical surface; And adhesive, described adhesive attachment is on described cylinderical surface, and around the circumferential edge of described magnet and towards at least a portion of the permanent magnet side in described gap, and a zone that keeps described side is directly exposed in the gap.
2. electric rotating machine as claimed in claim 1 is characterized in that, described adhesive only covers coverage rate to the circumferential ends of the magnet side in gap, and the circle center of magnet partly is exposed out.
3. electric rotating machine as claimed in claim 1 is characterized in that, only coverage rate is to the circumference mid portion of the magnet side in gap for adhesive, and the circumferential ends of magnet is exposed out.
4. electric rotating machine as claimed in claim 1 is characterized in that, is adhesively secured on the cylinderical surface towards the side of the permanent magnet of cylinderical surface.
5. electric rotating machine as claimed in claim 4 is characterized in that, is positioned at the groove that cylinderical surface forms towards the side of the permanent magnet of cylinderical surface.
6. electric rotating machine as claimed in claim 4 is characterized in that, adhesive forms a kind of like this shape, the cylinderical surface that this shape will have towards the gap, and described cylinderical surface is with tangent towards the magnet side in gap.
7. electric rotating machine as claimed in claim 6 is characterized in that, only coverage rate is to the circumferential ends of the magnet side in gap for adhesive, and its circle center partly is exposed out.
8. electric rotating machine as claimed in claim 6 is characterized in that, only coverage rate is to circle center's part of the magnet side in gap for adhesive, and its circumferential ends is exposed out.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003008740A JP2004222455A (en) | 2003-01-16 | 2003-01-16 | Rotating electric equipment |
| JP2003008740 | 2003-01-16 | ||
| US10/707688 | 2004-01-05 | ||
| US10/707,688 US20040140725A1 (en) | 2003-01-16 | 2004-01-05 | Rotary electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1521919A true CN1521919A (en) | 2004-08-18 |
Family
ID=34315559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100027513A Pending CN1521919A (en) | 2003-01-16 | 2004-01-16 | Rotary electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1521919A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567594A (en) * | 2008-04-25 | 2009-10-28 | 株式会社捷太格特 | Motor rotor and electric power steering apparatus |
| CN101868901A (en) * | 2007-10-30 | 2010-10-20 | 伍德沃德Hrt公司 | Lamination having tapered tooth geometry which is suitable for use in electric motor |
| CN102545512A (en) * | 2008-06-20 | 2012-07-04 | 株式会社日立制作所 | Permanent magnet synchronous motor |
| CN104185591A (en) * | 2012-04-04 | 2014-12-03 | 罗伯特·博世有限公司 | Electrically driven two-wheeled vehicle |
| CN105723593A (en) * | 2013-11-08 | 2016-06-29 | 株式会社明电舍 | Magnet-securing structure for surface permanent magnet motor, and method for designing said structure |
| CN111555485A (en) * | 2020-05-18 | 2020-08-18 | 西京学院 | Permanent magnet motor with closable magnetic pole stator and convenient to install |
| CN113595275A (en) * | 2021-07-26 | 2021-11-02 | 珠海格力电器股份有限公司 | Stopper, motor and robot |
-
2004
- 2004-01-16 CN CNA2004100027513A patent/CN1521919A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868901A (en) * | 2007-10-30 | 2010-10-20 | 伍德沃德Hrt公司 | Lamination having tapered tooth geometry which is suitable for use in electric motor |
| CN101567594A (en) * | 2008-04-25 | 2009-10-28 | 株式会社捷太格特 | Motor rotor and electric power steering apparatus |
| CN101567594B (en) * | 2008-04-25 | 2013-10-16 | 株式会社捷太格特 | Motor rotor and electric power steering apparatus |
| CN102545512A (en) * | 2008-06-20 | 2012-07-04 | 株式会社日立制作所 | Permanent magnet synchronous motor |
| CN102545512B (en) * | 2008-06-20 | 2014-11-12 | 株式会社日立制作所 | Permanent magnet synchronous motor |
| CN104185591A (en) * | 2012-04-04 | 2014-12-03 | 罗伯特·博世有限公司 | Electrically driven two-wheeled vehicle |
| CN105723593A (en) * | 2013-11-08 | 2016-06-29 | 株式会社明电舍 | Magnet-securing structure for surface permanent magnet motor, and method for designing said structure |
| CN105723593B (en) * | 2013-11-08 | 2019-03-26 | 株式会社明电舍 | The magnet fixture construction and its design method of permanent magnet surface stuck type motor |
| CN111555485A (en) * | 2020-05-18 | 2020-08-18 | 西京学院 | Permanent magnet motor with closable magnetic pole stator and convenient to install |
| CN113595275A (en) * | 2021-07-26 | 2021-11-02 | 珠海格力电器股份有限公司 | Stopper, motor and robot |
| CN113595275B (en) * | 2021-07-26 | 2022-10-25 | 珠海格力电器股份有限公司 | Stopper, motor and robot |
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