CN201813233U - Permanent magnet rotor for motor - Google Patents
Permanent magnet rotor for motor Download PDFInfo
- Publication number
- CN201813233U CN201813233U CN2010205460780U CN201020546078U CN201813233U CN 201813233 U CN201813233 U CN 201813233U CN 2010205460780 U CN2010205460780 U CN 2010205460780U CN 201020546078 U CN201020546078 U CN 201020546078U CN 201813233 U CN201813233 U CN 201813233U
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- CN
- China
- Prior art keywords
- iron core
- permanent magnet
- assembling iron
- assembling
- cuboid
- 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.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a permanent magnet rotor for a motor, and relates to a motor structure. Two symmetrical trapezoidal grooves are distributed on the excircle of a combined iron core; four rectangular cavities are distributed in the combined iron core; the combined iron core is provided with non-magnetic stainless steel panels and spacing pieces; two spacing pieces are uniformly inserted into the combined iron core to separate the combined iron core into three equal parts in the axial direction; after a plurality of pin rolls pass through the two panels, the two spacing pieces, an inner iron core and an outer iron core, two end heads of the pin rolls are riveted so as to form the combined iron core; the four rectangular cavities are separated into 12 small rectangular cavities; 12 rectangular permanent magnet blocks are embedded into the 12 small rectangular cavities; and six trapezoidal blocks of which the outer edges are external arc surfaces are embedded into six trapezoidal grooves of the combined iron core, so that the external arc surfaces of the trapezoidal blocks and the external arc surfaces of the combined iron core form a complete cylindrical surface. The permanent magnet rotor has the advantages that: working points of the permanent magnets are points with the maximum magnetic energy product in four complex lines, and the manufacturing process for the rectangular blocks is simple.
Description
Technical field:
The utility model relates to electric machine structure, particularly a kind of motor p-m rotor.
Background technology:
A kind of motor p-m rotor is made up of iron core, main shaft, permanent magnet, iron core be by the silicon steel sheet of some same shapes overlapping after, both ends of the surface are fitted respectively with the non-magnetic stainless steel faceplate of cross sectional shape, pass uniform four holes with bearing pin again and realize riveted and fixed.It is cylindric that cylindrical is, and fit is fixed with main shaft in the interior circular hole, offers two deep-slotted chip breakers of symmetry on the iron core, is inlaid with the tile shape permanent magnet in the deep-slotted chip breaker, also is provided with several through holes in the iron core and uses for the cooling of ventilating.
The permanent magnet great majority that motor of the same type uses are tile shape, and it is bigger that entire area all shows.The air-gap flux rule of analyzing it from the physical phenomenon of motion is relatively good, yet has leakage flux in magneto, the actual participation energy converting between mechanical be effective magnetic energy in the air-gap field, be not total magnetic energy of permanent magnet.Because its shape and structure difference and volume size are bigger than normal, influenced and magnetizedly evenly the best operating point of permanent magnet is changed to some extent, influenced the optimum performance of motor, waste of material is big, cost up.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of motor p-m rotor is provided.
Scheme of the present utility model is: the assembling iron core cylindrical of being made up of interior iron core and outer iron core is distributed with two symmetrical dovetail grooves, also be distributed with four cuboid shape cavitys in the assembling iron core, two adjacent cuboid cavitys are vertical configuration each other, the outer opening of cuboid cavity is on the trapezoidal central plane of dovetail groove, and two one-sided cuboid cavity inner ends cavity triangular in shape is communicated with; Also be provided with non-magnetic stainless steel faceplate of assembling iron core both ends of the surface and two the non-magnetic stainless steel distance pieces identical shaped on the assembling iron core with it, in two uniform insertion assembling iron cores of distance piece assembling iron core axially is separated into trisection, after some bearing pins passed two panels, two distance pieces, interior iron core, outer iron core, the riveted joint of bearing pin two ends formed assembling iron core; Two panels and two distance pieces are not provided with rectangular opening on assembling iron core cuboid cavity, thereby four cuboid cavitys are separated into 12 small rectangular body cavitys; There are 12 permanent magnet rectangular blocks to inlay and are fixed in these 12 little rectangular enclosures corresponding to the small rectangular body cavity shape, the trapezoid block that other is provided with six outers is exterior arc surface embeds in six dovetail grooves of assembling iron core, pass two panels and two distance piece corresponding apertures enforcement riveted joints with bearing pin, make trapezoid block exterior arc surface and assembling iron core exterior arc surface form a complete cylindrical surface.
Advantage of the present utility model is: the permanent magnet volume is relevant with the magnetic energy utilization coefficient with the maximum magnetic energy product of permanent magnetic material, and maximum magnetic energy product is big more, volume is more little; The magnetic energy utilization coefficient is big more, and volume is more little, utilizes situation best.And according to the characteristics of planar rectangular, magnetization is evenly best, and the permanent magnet working point is positioned at the point that maximum magnetic energy product is arranged on four multiple lines, and is the morsel combination, and the magnetic property of same material is best.The rectangular block manufacture craft is also simple, is separated into 12 little rectangular blocks permanent magnet cutting utilance is improved.The setting of trapezoid block has reduced windage, can reduce intensification, reduces hot dilatancy, makes the motor operate power stable and durable.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment:
The utility model structure is made up of assembling iron core 2, main shaft 5, permanent magnet, it is characterized in that: assembling iron core 2 cylindricals of being made up of interior iron core and outer iron core are distributed with two symmetrical dovetail grooves, also be distributed with four cuboid shape cavitys in the assembling iron core 2, two adjacent cuboid cavitys are vertical configuration each other, the outer opening of cuboid cavity is on the trapezoidal central plane of dovetail groove, and two one-sided cuboid cavity inner ends cavity triangular in shape is communicated with; Also be provided with non-magnetic stainless steel faceplate 1 of assembling iron core 2 both ends of the surface and two the non-magnetic stainless steel distance pieces 3 identical shaped on the assembling iron core 2 with it, in two distance piece 3 uniform insertion assembling iron cores 2 assembling iron core 2 axially is separated into trisection, after some bearing pins passed two panels 1, two distance pieces 3, interior iron core, outer iron core, the riveted joint of bearing pin two ends formed assembling iron core 2; Two panels 1 and two distance pieces 3 are not provided with rectangular opening on assembling iron core 2 cuboid cavitys, thereby four cuboid cavitys are separated into 12 small rectangular body cavitys; There are 12 permanent magnet rectangular blocks 4 to inlay and are fixed in these 12 little rectangular enclosures corresponding to the small rectangular body cavity shape, the trapezoid block 6 that other is provided with six outers is exterior arc surface embeds in six dovetail grooves of assembling iron core 2, pass two panels 1 and two distance piece 3 corresponding apertures enforcement riveted joints with bearing pin, make trapezoid block 6 exterior arc surfaces and assembling iron core 2 exterior arc surfaces form a complete cylindrical surface.
The purpose that dovetail groove is set is to be convenient to embed the small rectangular body cavity for permanent magnet.It is to have reduced windage for the rotor cylindrical is the wholecircle column that trapezoid block 6 embeds dovetail groove.Trapezoid block 6 nonmetallic materials are as plastics, nylon etc.
Claims (1)
1. motor p-m rotor, form by assembling iron core (2), main shaft (5), permanent magnet, it is characterized in that: assembling iron core (2) cylindrical of being made up of interior iron core and outer iron core is distributed with two symmetrical dovetail grooves, also be distributed with four cuboid shape cavitys in the assembling iron core (2), two adjacent cuboid cavitys are vertical configuration each other, the outer opening of cuboid cavity is on the trapezoidal central plane of dovetail groove, and two one-sided cuboid cavity inner ends cavity triangular in shape is communicated with; Also be provided with assembling iron core (2) non-magnetic stainless steel faceplates of both ends of the surface (1) and two the non-magnetic stainless steel distance pieces (3) identical shaped on the assembling iron core (2) with it, in the uniform insertion assembling iron cores of two distance pieces (3) (2) assembling iron core (2) axially is separated into trisection, after some bearing pins passed two panels (1), two distance pieces (3), interior iron core, outer iron core, the riveted joint of bearing pin two ends formed assembling iron core (2); Two panels (1) and two distance pieces (3) are not provided with rectangular opening on assembling iron core (2) cuboid cavity, thereby four cuboid cavitys are separated into 12 small rectangular body cavitys; Having 12 permanent magnet rectangular blocks (4) corresponding to the small rectangular body cavity shape to inlay is fixed in these 12 little rectangular enclosures, the trapezoid block that other is provided with six outers is exterior arc surface (6) embeds in six dovetail grooves of assembling iron core (2), pass two panels (1) and two distance pieces (3) corresponding aperture enforcement riveted joint with bearing pin, make trapezoid block (6) exterior arc surface and assembling iron core (2) exterior arc surface form a complete cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205460780U CN201813233U (en) | 2010-09-28 | 2010-09-28 | Permanent magnet rotor for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205460780U CN201813233U (en) | 2010-09-28 | 2010-09-28 | Permanent magnet rotor for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813233U true CN201813233U (en) | 2011-04-27 |
Family
ID=43896170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205460780U Expired - Fee Related CN201813233U (en) | 2010-09-28 | 2010-09-28 | Permanent magnet rotor for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545435A (en) * | 2012-01-22 | 2012-07-04 | 浙江大学 | Sectional rotor structure for permanent magnet synchronous motor |
-
2010
- 2010-09-28 CN CN2010205460780U patent/CN201813233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545435A (en) * | 2012-01-22 | 2012-07-04 | 浙江大学 | Sectional rotor structure for permanent magnet synchronous motor |
| CN102545435B (en) * | 2012-01-22 | 2014-11-19 | 浙江大学 | Sectional rotor structure for permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |