CN105406627A - Tooth-slot salient permanent magnet composite array and electromagnetic apparatus - Google Patents
Tooth-slot salient permanent magnet composite array and electromagnetic apparatus Download PDFInfo
- Publication number
- CN105406627A CN105406627A CN201511006365.6A CN201511006365A CN105406627A CN 105406627 A CN105406627 A CN 105406627A CN 201511006365 A CN201511006365 A CN 201511006365A CN 105406627 A CN105406627 A CN 105406627A
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- China
- Prior art keywords
- salient pole
- permanent magnetism
- pole permanent
- teeth groove
- composite array
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
Abstract
The invention belongs to the fields of electromagnetic apparatuses and electric appliances, and specifically relates to a tooth-slot salient permanent magnet composite array and an electromagnetic apparatus. The tooth-slot salient permanent magnet array comprises slot part convex irons 3, magnet arrays 2 and tooth part convex irons 4; the tooth part convex iron 4 is formed by an iron core tooth with a yoke part 5; the magnet array 2 is formed by slot peripheral magnets pasted along the inner wall of the iron core slot; the slot part convex iron 3 is positioned on the other surface, tightly adhered to the magnet array 2, in the iron core slot. The tooth-slot salient permanent magnet composite array is adopted as the secondary to be matched with the corresponding primary or an iron core to form a tooth-slot salient permanent magnet composite electromagnetic apparatus, the secondary internal flux leakage can be greatly suppressed or even eliminated; under the condition of a same volume and a same manufacturing cost, the power and output of the permanent magnet motor can be greatly improved; or under a condition of the same power, the volume and the manufacturing and use cost of the permanent magnet motor can be dramatically reduced; and therefore, the tooth-slot salient permanent magnet composite array is particularly suitable for engineering application occasions of high power permanent magnet motors and other electromagnetic apparatuses.
Description
Technical field
The invention belongs to and belong to electrical equipment and electrical, calutron field, be specifically related to a kind of teeth groove salient pole permanent magnetism composite array and calutron.
Background technology
Magneto is widely used in all trades and professions as a kind of calutron, and it is mainly divided into permanent magnet rotating machine and the large class of permanent-magnetism linear motor two.Permanent magnet rotating machine can be divided into the rotor magnetic circuit structural such as surface-type (be divided into surperficial convex type, surperficial plug-in type not only), built-in (but also be divided into radial, tangential, hybrid etc.) by the arrangement of rotor permanent magnet, former structure is simple, but equivalent electric magnetic air gap is large, power density is lower, can not self-starting, the former is large for the latter's power density ratio, but leakage field is also larger, need to arrange special in magnetic bridge restriction leakage field, complex structure, all causes that the power density of motor is low, permanent magnet utilance is not high.Permanent-magnetism linear motor as another large class is also widely used in magnetic suspension train, directly drive elevator, a lot of application such as automatic assembly line and occasion, plane can be divided into by structure, cylinder type (cast), the types such as camber, non-salient pole type can be divided into by the arrangement of rotor permanent magnet, salient pole type, mixed type etc., by elementary, secondary arrangement also can be divided into double-flanged end and single side type and compound etc., also have the calutron of other kind equally also exist electromagnetism air gap and or leakage field large, power density is low, exert oneself little, volume is large, the problems such as manufacturing cost and use cost is high.
Summary of the invention
The technical problem to be solved in the present invention is that existing calutron comprises that magneto power output is low, energy index is low, volume is excessive, the engineer applied bottleneck problem of high cost.Be specifically related to a kind of teeth groove salient pole permanent magnetism composite array and calutron, described teeth groove salient pole permanent magnet array is made up of groove portion noseiron, magnet array, teeth portion noseiron, teeth portion noseiron is made up of the iron core teeth with yoke portion, magnet array is made up of the groove week magnet mounted along iron core slot inwall, groove portion noseiron is positioned at iron core slot middle part and is close to another surface setting of magnet array
For achieving the above object, by the following technical solutions:
A kind of teeth groove salient pole permanent magnetism composite array, teeth groove salient pole permanent magnetism composite array is mounted successively by least one group of teeth groove salient pole permanent magnetism composite array unit and forms, teeth groove salient pole permanent magnetism composite array unit is by groove portion noseiron, magnet array, iron core forms, iron core is provided with groove, the both sides of groove are teeth portion noseiron, remainder is yoke portion, groove portion noseiron is positioned at groove middle part and is close to magnet array outer surface and arranges, magnet array forms along the groove week magnet that groove inner wall mounts by least one group, magnet array is at the polarity identical magnetic pole of groove portion noseiron surface aggregation, opposite polarity magnetic pole is formed on teeth portion noseiron surface.
Iron core in adjacent teeth groove salient pole permanent magnetism composite array unit is structure as a whole.
The cross section of described iron core groove is U-shaped or semicircle or rectangle or trapezoidal or sinusoidal waveform or V-arrangement or triangle or rhombus or pentagon or hexagon or " recessed " shape or " convex " shape or dovetails shape.
Teeth portion noseiron is offered at least one open slot, is provided with normal direction magnet in open slot, normal direction magnet surface polarity is consistent with teeth portion noseiron surface polarity.
Teeth portion noseiron and/or groove portion noseiron arrange at least one electric conductor, and the lateral ends of electric conductor is connected by conducting ring or conducting strip.
Teeth portion noseiron and/or groove portion noseiron are provided with at least one cavity, are provided with electric conductor in cavity, each electric conductor lateral ends is connected by conducting ring or conducting strip; Or lay on the surface of teeth portion noseiron and/or groove portion noseiron or connect one deck circumference thin slice, teeth portion noseiron and groove portion noseiron are connected to each other to an entirety, circumference thin slice is magnetic conduction thin slice or conductive foil or magnetic conduction conduction compound foil or the magnetic conduction teeth groove thin slice for trough of belt, the embedded electric conductor of groove, electric conductor lateral ends is connected by conducting ring or conducting strip.
Have at least one group of groove portion noseiron and teeth portion noseiron and or two lateral ends in yoke portion linked into an integrated entity by connector, and or have at least bottom one group of groove portion noseiron and between the yoke portion below it and linked into an integrated entity by least one magnetic conduction normal direction thin slice, form unified teeth groove salient pole permanent magnetism composite array, the magnet array around groove portion noseiron or all magnets of groove are divided into left and right two halves by this normal direction thin slice.
Described groove week magnet, normal direction magnet are permanent magnet, superconducting magnet or electric excitation body.
The transverse ends of teeth groove salient pole permanent magnetism composite array to join end to end around a longitudinal axis and is rolled into cylindrical shape by described teeth groove salient pole permanent magnetism composite array, becomes cylinder type teeth groove salient pole permanent magnetism composite array.
Longitudinal two ends of teeth groove salient pole permanent magnetism composite array to join end to end along an axis of pitch and are rolled into circle by described teeth groove salient pole permanent magnetism composite array, form rotary-type teeth groove salient pole permanent magnetism composite array.
Two teeth groove salient pole permanent magnetism composite arrays are provided separately face-to-face or become "eight" shape to be arranged to double-flanged end teeth groove salient pole permanent magnetism composite array, or arrange formation conjugation double-flanged end teeth groove salient pole permanent magnetism composite array back-to-back.
The lateral ends connector on described double-flanged end teeth groove salient pole permanent magnetism composite array both sides links into an integrated entity, and forms U-shaped teeth groove salient pole permanent magnetism composite array.
Using described teeth groove salient pole permanent magnetism composite array as secondary, with corresponding elementary or grooved core or not grooved core coordinate and form teeth groove salient pole permanent magnetism composite electromagnetic device.
Teeth groove salient pole permanent magnetism composite array of the present invention is adopted to form teeth groove salient pole permanent magnetism composite electromagnetic device as secondary to coordinate with respective primary, significantly can suppress the leakage field eliminating secondary inner even completely, under same volume and manufacturing cost, significantly can increase the power of the devices such as motor and exert oneself, or under equal-wattage, significantly reduce the volume of device and manufacture use cost, being specially adapted to the engineer applied occasions such as calutron such as heavy-duty motor.Solve the bottleneck problem of the calutron engineer applied such as heavy-duty motor.
Accompanying drawing explanation
Fig. 1 is a kind of teeth groove salient pole permanent magnetism composite array structural representation one of the present invention;
Fig. 2 is a kind of teeth groove salient pole permanent magnetism composite array structural representation two of the present invention;
Fig. 3 is a kind of teeth groove salient pole permanent magnetism composite array structural representation three of the present invention;
Fig. 4 is a kind of teeth groove salient pole permanent magnetism composite array structural representation four of the present invention;
Fig. 5 is a kind of teeth groove salient pole permanent magnetism composite array structural representation five of the present invention;
Fig. 6 is a kind of teeth groove salient pole permanent magnetism composite array structural representation six of the present invention;
Fig. 7 is a kind of teeth groove salient pole permanent magnetism composite array structural representation seven of the present invention;
Fig. 8 is a kind of teeth groove salient pole permanent magnetism composite array structural representation eight of the present invention;
Fig. 9 is a kind of teeth groove salient pole permanent magnetism composite array structural representation nine of the present invention;
Figure 10 is a kind of teeth groove salient pole permanent magnetism composite array structural representation ten of the present invention;
Figure 11 is a kind of teeth groove salient pole permanent magnetism composite array structural representation 11 of the present invention;
Figure 12 is a kind of teeth groove salient pole permanent magnetism composite array structural representation 12 of the present invention;
Figure 13 is a kind of teeth groove salient pole permanent magnetism composite array structural representation 13 of the present invention;
Figure 14 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation one;
Figure 15 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation two;
Figure 16 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation three;
Figure 17 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation four;
Figure 18 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation five;
Figure 19 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation six;
Figure 20 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation seven;
Figure 21 is double-flanged end teeth groove salient pole permanent magnetism composite array structural representation eight;
Figure 22 is cylinder type teeth groove salient pole permanent magnetism composite array cross section structure schematic diagram;
Figure 23 is cylinder type teeth groove salient pole permanent magnetism composite array three dimensional sectional view;
Figure 24 is cylinder type teeth groove salient pole permanent magnetism composite array graphics;
Figure 25 is rotary motor configuration schematic diagram one;
Figure 26 is rotary motor configuration schematic diagram two;
Figure 27 is monolateral composite permanet magnet calutron structural representation one;
Figure 28 is monolateral composite permanet magnet calutron structural representation two;
Figure 29 is monolateral composite permanet magnet calutron structural representation three;
Figure 30 is monolateral composite permanet magnet calutron structural representation four;
Figure 31 is bilateral composite permanet magnet calutron structural representation;
Figure 32 is monolateral composite permanet magnet calutron magnetic FEM artificial magnetic line distribution map.
Wherein: 1. elementary; 2. magnet array; 3. groove portion noseiron; 4. teeth portion noseiron; 5. yoke portion; 6. circumferential thin slice; 7. electric conductor; 8. normal direction thin slice; 9. normal direction magnet.
Embodiment
As shown in Fig. 1-Figure 13, described teeth groove salient pole permanent magnet array is mounted successively by least one group of teeth groove salient pole permanent magnetism composite array unit and forms, teeth groove salient pole permanent magnetism composite array unit is by groove portion noseiron 3, magnet array 2, iron core forms, iron core is provided with groove, the both sides of groove are teeth portion noseiron 4, remainder is yoke portion 5, groove portion noseiron 3 is positioned at groove middle part and is close to magnet array 2 outer surface and arranges, magnet array 2 forms along the groove week magnet that groove inner wall mounts by least one group, magnet array 2 is at the polarity identical magnetic pole of groove portion noseiron 3 surface aggregation, opposite polarity magnetic pole is formed on teeth portion noseiron 4 surface.Iron core in adjacent teeth groove salient pole permanent magnetism composite array unit is structure as a whole.
The cross section of the groove portion noseiron shown in Fig. 1, Fig. 7, Fig. 8 is U-shaped; The cross section of the groove portion noseiron 3 shown in Fig. 2 is rectangle, the cross section of the groove portion noseiron 3 shown in Fig. 3, Fig. 4 is trapezoidal, the cross section hexagon of the groove portion noseiron 3 shown in Fig. 5, the cross section of the groove portion noseiron 3 shown in Fig. 6 is " convex " font, and the iron core slot on magnet array 2 and motionless groove portion noseiron 4 and floating trough portion noseiron 3 are equipped with.
In Fig. 9, at least one open slot is offered on described teeth portion noseiron 4 or iron core teeth surface, is equipped with or embeds normal direction magnet 9 in open slot, and the surperficial pole polarity of normal direction magnet 9 is consistent with teeth portion noseiron 4 surface polarity.Normal direction magnet 9 shape is rectangle or trapezoidal or triangle or " convex " shape or flat mouth is semicircle or flat mouth arc or their combination shape structure, and open slot flute profile and normal direction magnet 9 are equipped with.
In Figure 10, linked into an integrated entity bottom the groove portion noseiron 3 in described teeth groove salient pole permanent magnetism composite array and between the yoke portion 5 below it by least one magnetic conduction normal direction thin slice 8, magnet array 2 base channel week magnet is split into two halves by normal direction thin slice 8.In Figure 11, at least one opening sulculus or semi-closed port sulculus or sulculus of remaining silent are offered in groove portion noseiron 3 in described teeth groove salient pole permanent magnetism composite array and/or teeth portion noseiron 4 surface, the embedded electric conductor 7 of sulculus, and each electric conductor 7 lateral ends being positioned at same groove portion noseiron 3 or teeth portion noseiron 4 is conducted electricity short circuit band or conducting connecting part by (being similar to mouse cage rotary inductive motor end short-circuited conducting sleeve) be connected.
The circumferential thin slice 6 that the surface of the groove portion noseiron 3 in described teeth groove salient pole permanent magnetism composite array, teeth portion noseiron 4 is laid or connection one deck is arranged continuously, each groove portion noseiron 3, teeth portion noseiron 4 are connected to each other to an entirety, circumference thin slice 6 be that magnetic conduction thin slice or conductive foil or magnetic conduction conduct electricity compound foil (as shown in figure 12), or for being at least with the magnetic conduction teeth groove thin slice of an opening sulculus or semi-closed port sulculus or sulculus of remaining silent, the embedded electric conductor 7 of sulculus, each electric conductor lateral ends is connected by conduction short circuit band or conducting connecting part, as shown in figure 13.
In Figure 14-Figure 21, become bilateral teeth groove salient pole permanent magnetism composite array along yoke portion 5 one longitudinal axis mirror image, be longitudinally iron core surface tangential direction or the direction of motion, normal direction is tooth space centerline direction, is laterally the direction perpendicular to longitudinal direction and normal direction.
The lateral ends in above-mentioned groove portion noseiron 3 lateral ends and teeth portion noseiron 4 or yoke portion 5 or teeth portion noseiron 4, yoke portion 5 is connected by end supporting bracket or connector, forms unified teeth groove salient pole permanent magnetism composite array.
Figure 22, Figure 23 are cylinder type teeth groove salient pole permanent magnetism composite array structural representation, the laterally head and the tail two ends of teeth groove salient pole permanent magnetism composite array to be connected around the longitudinal axis outside yoke portion 5 by teeth groove salient pole permanent magnetism composite array in Fig. 1 and is rolled into cylindrical or cast, become cylinder type or cast teeth groove salient pole permanent magnetism composite array, be longitudinally the surperficial tangential direction of teeth portion noseiron 4 or the direction of motion, normal direction is teeth portion noseiron 4 or groove portion noseiron 3 centerline direction, is laterally the direction perpendicular to longitudinal direction and normal direction.Wherein, Figure 22 is cylinder type teeth groove salient pole permanent magnetism composite array axial symmetry sectional view, and Figure 23 is the three-dimensional partial section of cylinder type teeth groove salient pole permanent magnetism composite array, and Figure 24 is cylinder type teeth groove salient pole permanent magnetism composite array three-dimensional structure schematic diagram.
Figure 25, Figure 26 are electric rotating machine schematic diagram, in figure, the longitudinally head and the tail two ends of teeth groove salient pole permanent magnetism composite array to be connected around the axis of pitch outside yoke portion 5 by Fig. 1 teeth groove salient pole permanent magnetism composite array and is rolled into annular, become rotary-type teeth groove salient pole permanent magnetism composite array, be longitudinally the surperficial tangential direction of teeth portion noseiron 4 or the direction of motion, normal direction is tooth space centerline direction, is laterally the direction perpendicular to longitudinal direction and normal direction.By this rotary-type teeth groove salient pole permanent magnetism composite array, coordinate with corresponding stator or mover winding and form teeth groove salient pole permanent-magnetism linear motor or teeth groove salient pole permanent magnet rotating machine.
Figure 27-Figure 31 is composite permanet magnet calutron structure application schematic diagram, and in figure, described teeth groove salient pole permanent magnetism composite array, as mover or stator, coordinates with corresponding stator or mover winding and forms monolateral composite permanet magnet calutron.Wherein, Figure 31 is bilateral teeth groove salient pole permanent-magnetism linear motor, and all the other are monolateral teeth groove salient pole permanent-magnetism linear motor.
In above-described embodiment, described magnet can adopt permanent magnet, or superconducting magnet, or electric excitation body, determines according to concrete needs.In general, the preferential strong magnetic permanent-magnet adopting NdFeB material to make.
Figure 32 is monolateral teeth groove salient pole permanent-magnetism linear motor magnetic FEM artificial magnetic line distribution map of the present invention, therefrom can find out, except there is a small amount of leakage field in air gap (the groove portion noseiron 3) surface being difficult to avoid except routine and elementary notched areas, teeth groove salient pole permanent magnetism composite array of the present invention or secondary inner region almost do not have leakage field, make secondary permanent magnetism main magnetic circuit can reach almost Perfect in theory, that is permanent magnet does not almost have energy loss in secondary inner region, nearly all at the beginning of participating in, secondary energy converting between mechanical, therefore, the common hidden pole type of motor thrust ratio of the present invention or salient pole type permanent-magnetism linear motor significantly increase.Thus solve the calutrons such as existing motor and to exert oneself bottleneck problem that is little, the long-term engineering constraint application such as cost is high, volume is large, the teeth groove salient pole permanent magnetism composite electromagnetic device that a kind of structure is simple, exert oneself teeth groove salient pole permanent magnetism composite array composition large, cost performance is high is provided.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (13)
1. a teeth groove salient pole permanent magnetism composite array, it is characterized in that: teeth groove salient pole permanent magnetism composite array is mounted successively by least one group of teeth groove salient pole permanent magnetism composite array unit and forms, teeth groove salient pole permanent magnetism composite array unit is by groove portion noseiron, magnet array, iron core forms, iron core is provided with groove, the both sides of groove are teeth portion noseiron, remainder is yoke portion, groove portion noseiron is positioned at groove middle part and is close to magnet array outer surface and arranges, magnet array forms along the groove week magnet that groove inner wall mounts by least one group, magnet array is at the polarity identical magnetic pole of groove portion noseiron surface aggregation, opposite polarity magnetic pole is formed on teeth portion noseiron surface.
2. a kind of teeth groove salient pole permanent magnetism composite array according to claim 1, is characterized in that: the iron core in adjacent teeth groove salient pole permanent magnetism composite array unit is structure as a whole.
3. a kind of teeth groove salient pole permanent magnetism composite array according to claim 1, is characterized in that: the cross section of described iron core groove is U-shaped or semicircle or rectangle or trapezoidal or sinusoidal waveform or V-arrangement or triangle or rhombus or pentagon or hexagon or " recessed " shape or " convex " shape or dovetails shape.
4. a kind of teeth groove salient pole permanent magnetism composite array according to claim 1, it is characterized in that: on teeth portion noseiron, offer at least one open slot, be provided with normal direction magnet in open slot, normal direction magnet surface polarity is consistent with teeth portion noseiron surface polarity.
5. a kind of teeth groove salient pole permanent magnetism composite array according to claim 1, is characterized in that: teeth portion noseiron and/or groove portion noseiron arrange at least one electric conductor, and the lateral ends of electric conductor is connected by conducting ring or conducting strip.
6. a kind of teeth groove salient pole permanent magnetism composite array according to claim 1 and calutron, it is characterized in that: teeth portion noseiron and/or groove portion noseiron are provided with at least one cavity, be provided with electric conductor in cavity, each electric conductor lateral ends is connected by conducting ring or conducting strip; Or lay on the surface of teeth portion noseiron and/or groove portion noseiron or connect one deck circumference thin slice, teeth portion noseiron and groove portion noseiron are connected to each other to an entirety, circumference thin slice is magnetic conduction thin slice or conductive foil or magnetic conduction conduction compound foil or the magnetic conduction teeth groove thin slice for trough of belt, the embedded electric conductor of groove, electric conductor lateral ends is connected by conducting ring or conducting strip.
7. a kind of teeth groove salient pole permanent magnetism composite array according to claim arbitrary in claim 1-6 and calutron, it is characterized in that: have at least one group of groove portion noseiron and teeth portion noseiron and or two lateral ends in yoke portion linked into an integrated entity by connector, and or have at least bottom one group of groove portion noseiron and between the yoke portion below it and linked into an integrated entity by least one magnetic conduction normal direction thin slice, form unified teeth groove salient pole permanent magnetism composite array, the magnet array around groove portion noseiron or all magnets of groove are divided into left and right two halves by this normal direction thin slice.
8. according to a kind of teeth groove salient pole permanent magnetism composite array described in claim 7 and calutron, it is characterized in that: described groove week magnet, normal direction magnet are permanent magnet, superconducting magnet or electric excitation body.
9. a kind of teeth groove salient pole permanent magnetism composite array according to claim 7 and calutron, it is characterized in that: the transverse ends of teeth groove salient pole permanent magnetism composite array to join end to end around a longitudinal axis and is rolled into cylindrical shape by described teeth groove salient pole permanent magnetism composite array, becomes cylinder type teeth groove salient pole permanent magnetism composite array.
10. a kind of teeth groove salient pole permanent magnetism composite array according to claim 7 and calutron, it is characterized in that: longitudinal two ends of teeth groove salient pole permanent magnetism composite array to join end to end along an axis of pitch and are rolled into circle by described teeth groove salient pole permanent magnetism composite array, form rotary-type teeth groove salient pole permanent magnetism composite array.
11. according to a kind of teeth groove salient pole permanent magnetism composite array according to claim 7 and calutron, it is characterized in that: two teeth groove salient pole permanent magnetism composite arrays are provided separately face-to-face or become "eight" shape to be arranged to double-flanged end teeth groove salient pole permanent magnetism composite array, or formation conjugation double-flanged end teeth groove salient pole permanent magnetism composite array is set back-to-back.
12. a kind of teeth groove salient pole permanent magnetism composite array according to claim 11 and calutrons, it is characterized in that: the lateral ends connector on described double-flanged end teeth groove salient pole permanent magnetism composite array both sides links into an integrated entity, form U-shaped teeth groove salient pole permanent magnetism composite array.
13. application rights require a kind of teeth groove salient pole permanent magnetism composite electromagnetic device in 1-12 described in arbitrary claim, it is characterized in that: using described teeth groove salient pole permanent magnetism composite array as secondary, with corresponding elementary or grooved core or not grooved core coordinate and form teeth groove salient pole permanent magnetism composite electromagnetic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511006365.6A CN105406627A (en) | 2015-12-29 | 2015-12-29 | Tooth-slot salient permanent magnet composite array and electromagnetic apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511006365.6A CN105406627A (en) | 2015-12-29 | 2015-12-29 | Tooth-slot salient permanent magnet composite array and electromagnetic apparatus |
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| CN105406627A true CN105406627A (en) | 2016-03-16 |
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| CN201511006365.6A Pending CN105406627A (en) | 2015-12-29 | 2015-12-29 | Tooth-slot salient permanent magnet composite array and electromagnetic apparatus |
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Application publication date: 20160316 |
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