CN102761217A - Integral type steel magnet of high-performance permanent magnetic synchronous motor - Google Patents
Integral type steel magnet of high-performance permanent magnetic synchronous motor Download PDFInfo
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- CN102761217A CN102761217A CN2012102727539A CN201210272753A CN102761217A CN 102761217 A CN102761217 A CN 102761217A CN 2012102727539 A CN2012102727539 A CN 2012102727539A CN 201210272753 A CN201210272753 A CN 201210272753A CN 102761217 A CN102761217 A CN 102761217A
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Abstract
The invention discloses an integral type steel magnet of a high-performance permanent magnetic synchronous motor. The integral type steel magnet comprises a flat-plate-shaped steel magnet, and is characterized in that a left flat-plate-shaped steel magnet which forms an included angle theta1 with the flat-plate-shaped steel magnet and is integrally connected with the flat-plate-shaped steel magnet is arranged at the left edge of the flat-plate-shaped steel magnet; a right flat-plate-shaped steel magnet which forms an included angle theta2 with the flat-plate-shaped steel magnet and is integrally connected with the flat-plate-shaped steel magnet is arranged at the right edge of the flat-plate-shaped steel magnet; the central line of the flat-plate-shaped steel magnet is intersected with the central lines of the left flat-plate-shaped steel magnet and the right flat-plate-shaped steel magnet on a straight line; and the flat-plate-shaped steel magnet, the left flat-plate-shaped steel magnet and the right flat-plate-shaped steel magnet are made of a ferrite material and are integrally pressed and sintered. By the integral type steel magnet of the high-performance permanent magnetic synchronous motor, the production cost of the steel magnet is reduced, the magnetism gathering effect is improved, gaps between adjacent flat-plate-shaped steel magnets are avoided, the excitation effect of a rotor of the permanent magnetic synchronous motor and the power density of the motor are effectively improved, and the aim of replacing a rare earth material is fulfilled.
Description
Technical field
The present invention relates to a kind of improvement of magnet steel, specifically a kind of high-performance permagnetic synchronous motor integral type magnet steel.
Background technology
Magnet steel is that the magnetic pole as rotor is mounted on the parts on the rotor core.Present employed magnet steel according to different needs, mainly contains cylindrical shape, rhombus, watt shape, square.Materials are mainly used rubidium-Fe-B rare earth materials, ferrite material.Continuous development along with electric machines control technology; High performance permagnetic synchronous motor uses more and more universal; But the employed magnet steel of high-performance permagnetic synchronous motor all adopts rare earth material as excitation at present, and its planform is mainly laid by " V " shape by three blocks of dull and stereotyped magnet steel.This permagnetic synchronous motor employed " V " shape is laid the existing deficiency of magnet steel and is: the one, and be rare earth material owing to what adopt, and rare earth resources is limited, the cost straight rise has caused the cost of high-performance permagnetic synchronous motor magnet steel to improve in recent years; The 2nd, owing to there is bigger space between the adjacent panels magnet steel that " V " shape is laid; When particularly adopting the lower ferrite magnetic steel of magnetic energy product, because the magnet steel direction of magnetization is thicker, the space was bigger after each plate magnet steel was arranged to " V " shape; Space availability ratio is extremely low; It is relatively poor to gather the magnetic effect, and magnet steel edge is prone to influenced efficiency of motor by degaussing.
Summary of the invention
The object of the present invention is to provide a kind of through adopting the integral type magnet steel to exempt the space between the adjacent panels magnet steel; Thereby make rotor possess the good magnetic effect of gathering; Can effectively improve the power of motor, and production cost is low, the high-performance permagnetic synchronous motor integral type magnet steel of easy making.
In order to reach above purpose, the technical scheme that the present invention adopted is: this high-performance permagnetic synchronous motor integral type magnet steel, comprise plate magnet steel 1, and it is characterized in that: the left margin of described plate magnet steel 1 is provided with and 1 one-tenth angle theta of plate magnet steel
1, and the left plate type magnet steel 2 that connects as one; The right of described plate magnet steel 1 is along being provided with and 1 one-tenth angle theta of plate magnet steel
2, and the right plate magnet steel 3 that connects as one; The center line of the center line of plate magnet steel 1 and left plate type magnet steel 2 and the center line of right plate magnet steel 3 intersect on the straight line; It is an integral body that plate magnet steel 1, left plate type magnet steel 2 and right plate magnet steel 3 adopt the Ferrite Material compacting sinterings.
The present invention also implements through following measure: described plate magnet steel 1 is 1:1.2 with the ratio of the width of left plate type magnet steel 2 and right plate magnet steel 3---1.5; Angle theta
1And angle theta
2Equate; Be 123---125 degree; Its magnetizing direction is respectively perpendicular to left plate type magnet steel 2, plate magnet steel 1 and right plate magnet steel 3; Left plate type magnet steel 2 and right plate magnet steel 3 magnetizing directions are concentrated on the center line of plate magnet steel 1, and be accumulated into strong district with the magnetizing direction of plate magnet steel 1.
Described plate magnet steel 1 is 6 with the thickness of left plate type magnet steel 2 and right plate magnet steel 3---and 8mm, length is identical with the length of rotor core.
Described Ferrite Material is a kind of have high magnetic permeability, ferromagnetic mealy metallic oxide, is a kind of well known materials.
Use when of the present invention, this magnet steel directly is installed in the rotor core 4 gets final product.
The present invention is mainly used in the high-performance permagnetic synchronous motor of 4KW, 6KW and 8KW.
Beneficial effect of the present invention is: compares with the employed magnet steel of present high-performance permagnetic synchronous motor, owing to adopted Ferrite Material to substitute rare earth material, so significantly reduced the production cost of magnet steel; Because plate magnet steel, left plate type magnet steel and right plate magnet steel are an integral body; And left plate type magnet steel and the plate relatively magnet steel of right plate magnet steel have in the same way, greater than 90 the degree angle; Left plate type magnet steel and right plate magnet steel magnetizing direction are concentrated on the center line of plate magnet steel; And be accumulated into strong district with the magnetizing direction of plate magnet steel, gather the magnetic effect, exempted the space between the adjacent flat template magnet steel so significantly improved; Effectively raise the excitatory effect of permanent-magnetic synchronous motor rotor and the power density of motor, reached the purpose that replaces rare earth material.
Description of drawings
Fig. 1 is a structure schematic top plan view of the present invention;
Fig. 2 is the structure front-view schematic diagram of invention;
Fig. 3 is applied to the rotor sketch map of the high-performance permagnetic synchronous motor of 4KW for invention;
Fig. 4 is for be used for rare earth material " V " the shape rotor sketch map of the high-performance permagnetic synchronous motor of 4KW at present;
Among the figure: 1, plate magnet steel; 2, left plate type magnet steel; 3, right plate magnet steel; 4, rotor core.
Embodiment
Fig. 1, Fig. 2 have provided an embodiment; Fig. 3 has provided a rotor sketch map that is used for the high-performance permagnetic synchronous motor of 4KW; Fig. 4 has provided rare earth material " V " shape rotor sketch map that is used for the high-performance permagnetic synchronous motor of 4KW at present.This high-performance permagnetic synchronous motor integral type magnet steel comprises plate magnet steel 1, it is characterized in that: the left margin of described plate magnet steel 1 is provided with and 1 one-tenth angle theta of plate magnet steel
1, and the left plate type magnet steel 2 that connects as one; The right of described plate magnet steel 1 is along being provided with and 1 one-tenth angle theta of plate magnet steel
2, and the right plate magnet steel 3 that connects as one; The center line of the center line of plate magnet steel 1 and left plate type magnet steel 2 and the center line of right plate magnet steel 3 intersect on the straight line; It is an integral body that plate magnet steel 1, left plate type magnet steel 2 and right plate magnet steel 3 adopt the Ferrite Material compacting sinterings.
The inner edge width of described plate magnet steel 1 is 13.8mm, and the inner edge width of left plate type magnet steel 2 and right plate magnet steel 3 is 17.3mm; Angle theta
1And angle theta
2Equate; Be 123.2 degree; Mouth between left plate type magnet steel 2 and the right plate magnet steel 3 is wide to be 32.4 mm, and the center line of the center line of plate magnet steel 1 and left plate type magnet steel 2 and right plate magnet steel 3 intersects on the straight line, and its magnetizing direction is respectively perpendicular to left plate type magnet steel 2, plate magnet steel 1 and right plate magnet steel 3; Left plate type magnet steel 2 and right plate magnet steel 3 magnetizing directions are concentrated on the center line of plate magnet steel 1, and be accumulated into strong district with the magnetizing direction of plate magnet steel 1.
Described plate magnet steel 1 is 6mm with the thickness of left plate type magnet steel 2 and right plate magnet steel 3, and length is identical with the length of rotor core.
Described Ferrite Material is a kind of have high magnetic permeability, ferromagnetic mealy metallic oxide, is a kind of well known materials.
Present embodiment is used for the high-performance permanent-magnetic synchronous motor rotor of 4KW, directly is installed in the rotor core 4 by 3 pairs of utmost point rotor forms, and is as shown in Figure 4.Through with the employing rare earth material, by the dull and stereotyped magnet steel of " V " shape laying, by the rotor form that 3 pairs of utmost points are provided with, as shown in Figure 5, compare.Method relatively is to calculate effective area to increase multiple; Magnetizing direction is vertical magnet steel surface and magnetizes; Its method of calculating effective area increase multiple is: under same pole logarithm, identical rotor diameter, identical calculations pole embrace prerequisite, the actual magnetic flux acting surface of each utmost point and each utmost point compare at the string of the shared circular arc of rotor surface.Through calculating, in the present embodiment, it effectively provides the increase of magnetic flux area to be: (17.3*2+13.8)/and 32.4=1.4938 is doubly;
Be used at present 4KW the high-performance permagnetic synchronous motor rare earth material " V " shape magnet steel rotor effectively provide the magnetic flux area to increase to be: 19*2/32.4=1.172 is doubly.
Can know through contrast, adopt present embodiment effectively to provide the magnetic flux area to increase and be higher than V-arrangement distribution magnet steel; Material cost can descend 5 ~ 7 times;
In the running contrast of motor, rated current has reduced by 7%; Efficient has improved 6.8%.
The rotor that the present invention is used for the high-performance permagnetic synchronous motor of 6KW.Its structure and method for using are with embodiment 1.Change part, according to the requirement of the high-performance permagnetic synchronous motor of 6KW, described plate magnet steel 1 is 7mm with the thickness of left plate type magnet steel 2 and right plate magnet steel 3; Angle theta
1And angle theta
2Equate, be 124.5 degree.In the running contrast of motor, rated current has reduced by 6.1%; Efficient has improved 7.98%.
The rotor that the present invention is used for the high-performance permagnetic synchronous motor of 8KW.Its structure and method for using are with embodiment 1.Change part, according to the requirement of the high-performance permagnetic synchronous motor of 8KW, described plate magnet steel 1 is 8mm with the thickness of left plate type magnet steel 2 and right plate magnet steel 3; Angle theta
1And angle theta
2Equate, be 125.5 degree.In the running contrast of motor, rated current has reduced by 7.3%; Efficient has improved 8%.
Claims (3)
1. high-performance permagnetic synchronous motor integral type magnet steel comprises plate magnet steel (1), it is characterized in that: the left margin of described plate magnet steel (1) is provided with plate magnet steel (1) and becomes angle theta
1, and the left plate type magnet steel (2) that connects as one; The right of described plate magnet steel (1) becomes angle theta along being provided with plate magnet steel (1)
2, and the right plate magnet steel (3) that connects as one; The center line of the center line of the center line of plate magnet steel (1) and left plate type magnet steel (2) and right plate magnet steel (3) intersects on the straight line; It is an integral body that plate magnet steel (1), left plate type magnet steel (2) and right plate magnet steel (3) adopt the Ferrite Material compacting sintering.
2. high-performance permagnetic synchronous motor integral type magnet steel according to claim 1 is characterized in that: described plate magnet steel (1) is 1:1.2 with the ratio of the width of left plate type magnet steel (2) and right plate magnet steel (3)---1.5; Angle theta
1And angle theta
2Equate, be the 123-125 degree.
3. high-performance permagnetic synchronous motor integral type magnet steel according to claim 1 and 2 is characterized in that: described plate magnet steel (1) is 6 with the thickness of left plate type magnet steel (2) and right plate magnet steel (3)---8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102727539A CN102761217A (en) | 2012-08-02 | 2012-08-02 | Integral type steel magnet of high-performance permanent magnetic synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102727539A CN102761217A (en) | 2012-08-02 | 2012-08-02 | Integral type steel magnet of high-performance permanent magnetic synchronous motor |
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|---|---|
| CN102761217A true CN102761217A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102727539A Pending CN102761217A (en) | 2012-08-02 | 2012-08-02 | Integral type steel magnet of high-performance permanent magnetic synchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078464A (en) * | 2012-12-27 | 2013-05-01 | 上海特波电机有限公司 | Built-in permanent magnet synchronous motor |
| CN106026462A (en) * | 2016-06-23 | 2016-10-12 | 无锡新大力电机有限公司 | Permanent magnet motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000228835A (en) * | 1999-02-05 | 2000-08-15 | Fujitsu General Ltd | Permanent magnet motor |
| JP2002044889A (en) * | 2000-05-17 | 2002-02-08 | Hitachi Metals Ltd | 3-axis anistropic one-body permanent magnet and rotating machine |
| JP2002101585A (en) * | 2000-09-25 | 2002-04-05 | Nissan Motor Co Ltd | Rotor structure of synchronous motor |
| JP2002136011A (en) * | 2000-10-26 | 2002-05-10 | Fujitsu General Ltd | Permanent magnet motor |
| CN101741194A (en) * | 2008-11-25 | 2010-06-16 | 苏州工业园区和鑫电器有限公司 | Internal permanent magnet synchronous motor for hybrid electric vehicle |
| EP2333936A2 (en) * | 2009-11-25 | 2011-06-15 | UQM Technologies, Inc. | Rotor for a permanent magnet electric machine |
-
2012
- 2012-08-02 CN CN2012102727539A patent/CN102761217A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000228835A (en) * | 1999-02-05 | 2000-08-15 | Fujitsu General Ltd | Permanent magnet motor |
| JP2002044889A (en) * | 2000-05-17 | 2002-02-08 | Hitachi Metals Ltd | 3-axis anistropic one-body permanent magnet and rotating machine |
| JP2002101585A (en) * | 2000-09-25 | 2002-04-05 | Nissan Motor Co Ltd | Rotor structure of synchronous motor |
| JP2002136011A (en) * | 2000-10-26 | 2002-05-10 | Fujitsu General Ltd | Permanent magnet motor |
| CN101741194A (en) * | 2008-11-25 | 2010-06-16 | 苏州工业园区和鑫电器有限公司 | Internal permanent magnet synchronous motor for hybrid electric vehicle |
| EP2333936A2 (en) * | 2009-11-25 | 2011-06-15 | UQM Technologies, Inc. | Rotor for a permanent magnet electric machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078464A (en) * | 2012-12-27 | 2013-05-01 | 上海特波电机有限公司 | Built-in permanent magnet synchronous motor |
| CN103078464B (en) * | 2012-12-27 | 2015-04-22 | 上海特波电机有限公司 | Built-in permanent magnet synchronous motor |
| CN106026462A (en) * | 2016-06-23 | 2016-10-12 | 无锡新大力电机有限公司 | Permanent magnet motor |
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Application publication date: 20121031 |